PICS!!Look what came in the mail today:)

[oldschool3g]

http://i44.photobucket.com/albums/f37/twhonza/IMG_0785.jpg
http://i44.photobucket.com/albums/f37/twhonza/IMG_0783.jpg
http://i44.photobucket.com/albums/f37/twhonza/IMG_0790-1.jpg

[Legend_master]

WOW, thats looks good all polished up. I only see them with rust.

[oldschool3g]

yeah i know. i wasnt expecting them to be that shinny:)

[Gemini2003]

lol I know!! Mine are all fugly!


Looks great man.

[forrest89sei]

Wow that brings a tear to my eye :crying:


Very nice! :thumbup:

[87lxiaccord]

I have the same ones, they're nice even though they did come with some flaws like metal sticking up in the tubes where the o2 bung and egr tube holes are. I fixed that with a die grinder though :) They're gonna get less shiny just so you know...

[Pico]

Beautiful:D
I need to polish mine

[snoopyloopy]

wow, those look a million times better than the rusted ones in my garage. when are you putting them on?

[MessyHonda]

yup....hope you know that the fill bolt for the manual transmition will fit the A/S hole....i had mine for a while but i want to take care of the oil pan gasket since it leaks...and i dont want them leaking on the headers.

[oldschool3g]

wow, those look a million times better than the rusted ones in my garage. when are you putting them on?
i will be putting them on as soon as my magnaflow cat comes in:)

[oldschool3g]

yup....hope you know that the fill bolt for the manual transmition will fit the A/S hole....i had mine for a while but i want to take care of the oil pan gasket since it leaks...and i dont want them leaking on the headers.
is the a/s hole the biggest one on the header?. i think i should replace my oil pan gasket too to prevent it from leaking on the headers.

[LiTtLe xOx BitT]

Yea, its the big one. The smaller one is for the EGR tube.

[Rockcord]

that looks sweet maing!

[oldschool3g]

Yea, its the big one. The smaller one is for the EGR tube.
cool...so all i have to do is plug the big one up right?

[MessyHonda]

cool...so all i have to do is plug the big one up right?


yup because that is only used on carbed cars.

[Hazwan]

shiny!

[oldschool3g]

cool thanks guys for all your replies:)

[2oodoor]

Geez Bling

[Cheeseburger]

dope

[race12001]

nice

[oldschool3g]

thanks i should have it installed sometime next week...with..
-MAGNAFLOW CAT
-MAGNAFLOW MUFFLER
-NGK IRIDIUM SPARK PLUGS
-NGK WIRES
-FUEL INJECTORS
-MSD BLASTER 2 COIL
-DISTRIBUTOR CAP & ROTOR
-NEW FUEL FILTER
-OIL FILTER
-OPTIMA BATTERY

[snoopyloopy]

are you getting/do you already have a full exhaust set-up for between the cat and mufffler? imo, it's kinda pointless to weld the new muffler on the stock piping.

[oldschool3g]

yeah im getting new 2.25" piping from the cat to the muffler:)

[oldschool3g]

Hi guys, can anyone tell me where i can get the bolt to plug the A/S hole?..or has anyone plugged it a different way?:(

[snoopyloopy]

Hi guys, can anyone tell me where i can get the bolt to plug the A/S hole?..or has anyone plugged it a different way?:(


yup....hope you know that the fill bolt for the manual transmition will fit the A/S hole....i had mine for a while but i want to take care of the oil pan gasket since it leaks...and i dont want them leaking on the headers.

[oldschool3g]

is it only the manual fill bolt or will the automatic one work also?

[wprocomp]

go to autozone/orielys get a 19mm drain bolt,your done from what I remember dont have a motor to test anymore

[ghettogeddy]

is it only the manual fill bolt or will the automatic one work also?
i think the 5speed one is what u want
ill have an extra in a couple weeks

[oldschool3g]

well i went to autozone and asked them for a drain plug that big and they said they didnt carry any 19mm plugs:(. i dont think i could wait a couple weeks...im getting the whole exhaust installed as soon ass my magnaflow cat arrives...which should be in a couple of days...but thanks

[russiankid]

well i went to autozone and asked them for a drain plug that big and they said they didnt carry any 19mm plugs:(. i dont think i could wait a couple weeks...im getting the whole exhaust installed as soon ass my magnaflow cat arrives...which should be in a couple of days...but thanks
Go to the junkyard:rockon:

Anyways nice setup.

[oldschool3g]

I think i might just have it welded shut...i hope its not too much money to weld it...and thanks:)

[2drSE-i]

aww dont have it welded it will take away from the prettyness. Just make a quick run to the JY and steal a bolt

[oldschool3g]

i know:(...but i kinda dont have access to a junkyard near here...i wish. is there any way i can get this bolt online? i tried looking but no luck.

[ghettogeddy]

have u tried rock auto oh and through me a price i have an extra one on the tranny in my trunk just wont be able to ship till like sat

[oldschool3g]

is the bolt im looking for this one?---->#8?http://www.hondaautomotiveparts.com/auto/jsp/mws/prddisplay.jsp?inputstate=5&catcgry1=Accord&catcgry2=1989&catcgry3=3DR+LXI&catcgry4=KA5MT&catcgry5=MT++++++TRANSMISSION+HOUSING

[oldschool3g]

have u tried rock auto oh and through me a price i have an extra one on the tranny in my trunk just wont be able to ship till like sat
is the bolt im looking for this one?---->#8?http://www.hondaautomotiveparts.com/auto/jsp/mws/prddisplay.jsp?inputstate=5&catcgry1=Accord&catcgry2=1989&catcgry3=3DR+LXI&catcgry4=KA5MT&catcgry5=MT++++++TRANSMISSION+HOUSING

[LiTtLe xOx BitT]

It looks like its it. Its the 5-speed tranny oil fill bolt.

[oldschool3g]

im just not sure if 32mm is the size of the hole on the header...i dont have anything to measure it with.:(

[LiTtLe xOx BitT]

32mm sounds about right. Im not 100% positive though.

[oldschool3g]

Finally! I got my magnaflow cat and 92 civic front strut today. Everything is being installed tomorrow:)


http://i44.photobucket.com/albums/f37/twhonza/IMG_0808.jpg
http://i44.photobucket.com/albums/f37/twhonza/IMG_0818.jpg
http://i44.photobucket.com/albums/f37/twhonza/IMG_0820.jpg

[MessyHonda]

nice.

[ChaseR]

I got one of those to..

[oldschool3g]

I got one of those to..

The strut bar or the cat?

[BITESIZE]

The 92 strut bar fits perfect?

[oldschool3g]

The 92 strut bar fits perfect?

No..theres gonna have to be some modification....but it should fit after that

[ChaseR]

The strut bar or the cat?

I have the header ceramic coated as well. But I have a justin brand strut bar bar too.

[oldschool3g]

yeah i was going to get justins bar too...but didnt have money at the time. Well my car is at the shop at this moment getting everything installed and told them to check the brakes because its been vibrating really bad when i hit the brakes at high speeds....turns out my powerslot disc rotters are warped:(..and ive only had them for a few months:rant:

[MessyHonda]

yeah i was going to get justins bar too...but didnt have money at the time. Well my car is at the shop at this moment getting everything installed and told them to check the brakes because its been vibrating really bad when i hit the brakes at high speeds....turns out my powerslot disc rotters are warped:(..and ive only had them for a few months:rant:



get them resurfaced. and go easy on them...lol i have the EBC rotots....also check the tires..mine was not balanced and it made it seam bad.

[oldschool3g]

Well thats what i told the shop...but aparently he cant resurface them because it has slots on them. I just got 4 new falken tires yesterday including the balance with an alignment..so now i know its really the rotters

[guaynabo89]

yup get them resurfaced. dont let anyone tell you it cant be dont cause theyre slotted. if theyre thaat dumd you dont want them working on your car anyway.

good parts there. All you need is a mild cam, cai and youll have a nice pepe to it. b16 mani and 62mm tb if you can.

[guaynabo89]

Well thats what i told the shop...but aparently he cant resurface them because it has slots on them. I just got 4 new falken tires yesterday including the balance with an alignment..so now i know its really the rotters


any rotor can be resurfaced! I had my AEM rotors redone and they are x drilled and slotted no probs. All they have to do is not be dumb and set the tip to go deep into the rotor. It just takes a couple of more light steps.

take em somewhere else.

machine shop maybe if none of the automotive shops have the common sense to do it.

[oldschool3g]

yeah im gonna take it elsewhere...cause im not just gonna toss those rotters...theve been great to me:). i guess ill have my uncle resurface them in cali when i go on the 25th of this month...im in arizona right now and it is F'in HOT!..lol

[2ndGenGuy]

Another tip when braking: avoid complete stops when hard braking. Don't fly up to a stop light, and slam on the brakes. When you heat them up, then completely stop with the rotors not moving, the heat will cause the pads to deposit materials in that one spot. It will make your brakes feel warped when stopping.

It's like when taking a freeway offramp, slow down way early, and let your car slowly come to a stop so the rotors can cool before completely stopping.

You can actually try heat cycling your brakes a few times, sometimes that will take care of the problem. It doesn't cost you anything, and if they're still shuddering, get them resurfaced.

Just get on an open road and run up to about 80, and do some threshold braking down to about 30-40mph. Don't lock them up or you will deposit more material on the rotors. Do it about 3 or 4 times, or until you feel brake fade. Don't brake much more if they start fading, then drive around a bit and let them cool. You may be surprised at how much smoother the braking may be. It usually burns off the deposits.

[oldschool3g]

cool..thanks for the advise:)

[Hans]

Yeah I have probs with my rotors too.
Which muffler is that? Is it this one http://store.summitracing.com/partdetail.asp?autofilter=1&part=MPE%2D94105CA&N=700+400636+314779+4294891681+4294788248+115&autoview=sku?

[oldschool3g]

Yeah I have probs with my rotors too.
Which muffler is that? Is it this one http://store.summitracing.com/partdetail.asp?autofilter=1&part=MPE%2D94105CA&N=700+400636+314779+4294891681+4294788248+115&autoview=sku?

thats not the muffler...thats the cat..but yeah, thats the cat i got

[Hans]

Ah I meant to say cat not muffler lol

That's the cat I'll be getting :)

[oldschool3g]

lol..:). hopefully i get a good sound out of this setup...im anxious to see how it turns out...knightrider should be done sometime today:rockon:

[Hans]

lol..:). hopefully i get a good sound out of this setup...im anxious to see how it turns out...knightrider should be done sometime today:rockon:
Sweet man, congrats. I like knightrider a lot! Mabye... no you should def post a video of your car and rev it for us. :rockon:

[oldschool3g]

ok i will:) as soon as i get it back.

[oldschool3g]

OK. just got my car back from the shop...everything was installed..turned the engine on and sounds pretty good..but idles really weird when i pull out it rattle like a moffo from underneath:rant: its slower, alittle loud, and the engine check light comes on and stays on? can anyone help me?

[Hans]

Do a check all of the the fittings on the entire exhaust system, check the vacuum system fittings, check the gaskets and their fit on the head. That's all I can think of at the moment. They only installed the header, cat, muffler, and did custom pipes right?

[oldschool3g]

Well heres exactly what was done: They installed the pacessetter headers connected to magnaflow cat 2.25" pipe to the muffler. then they intalled my NGK iridium spark plugs/wires...complete tune up with cap and rotor, fuel filter, oil filter, oil change, and some reconditioned injectors that i had bought.

[Hans]

It could be the injectors or the spark plugs and or wires. IDK for sure though and the rattle is prob from them not putting the rubber bushings on the exhaust hangers or the exhaust being to close to a body panel.

[MessyHonda]

sounds like it could be your O2 sensors....did they replace them? also check your code.

[oldschool3g]

It could be the injectors or the spark plugs and or wires. IDK for sure though and the rattle is prob from them not putting the rubber bushings on the exhaust hangers or the exhaust being to close to a body panel.

well the spark plugs and wires are brand new. after test driving it for a bit i know that the rattling is the exhaust hitting something bad

[oldschool3g]

sounds like it could be your O2 sensors....did they replace them? also check your code.

no they didnt replace the O2 sensors...but one of them is new because a couple months ago it threw a sensor code so i had it replaced

[guaynabo89]

swap your o2 plugs and check to see if its hitting a heatshield somewhere.

as far as feling slower its because of the larger exhaust. itll most likely be faster in the upper rpm.

do you have any other supporting mods?

[oldschool3g]

swap your o2 plugs and check to see if its hitting a heatshield somewhere.
as far as feling slower its because of the larger exhaust. itll most likely be faster in the upper rpm.
do you have any other supporting mods?

Ok Ill tell them to swap the O2 sensors to see if it works. And your right about the rpms...when i hit the gas it seems to lag it...but once it hits higher rpms...it hauls some ass.

[MessyHonda]

the cat will take a week to fully break in....i remember mine being kinda loud and now its nice and deep tone to it. its easy to replace the O2 sensors...why pay some one to do it? plus they are cheap at like 30 bucks a pop...also did you seal the A/S part of the header.

[oldschool3g]

the cat will take a week to fully break in....i remember mine being kinda loud and now its nice and deep tone to it. its easy to replace the O2 sensors...why pay some one to do it? plus they are cheap at like 30 bucks a pop...also did you seal the A/S part of the header.

Yeah im going to swap the sensors myself instead. I just took my car back to the shop right now...jacked it up with the big machine and noticed the the header is hitting the front fame member and the bracket that holds the downpipe wasnt installed right. there going to take a piece off the frame so it wont hit and fix the bracket...hopefully it will stop the noise...it was imbaracing driving it to the shop..lol..my car sounds like i have a bunch of soda cans hanging from the bottom of my car...lol.

[LX-incredible]

Try swaping the O2 plugs Left should be connected to the green plug, right to the white.

[BITESIZE]

Where are the pictures of the header installed?

[oldschool3g]

Try swaping the O2 plugs Left should be connected to the green plug, right to the white.

cool..ill check to see if thats how there installed when i get the car back later today. thanks:)

[oldschool3g]

Where are the pictures of the header installed?

Dont worry bitesize:)...ill be posting plenty of pics later on today.

[BITESIZE]

Ok, just checking in. You've had it a while now. I can relate, I installed mine about a couple weeks later after recieving it.

[oldschool3g]

Ok, just checking in. You've had it a while now. I can relate, I installed mine about a couple weeks later after recieving it.

yeah i know. the thing that was holding me back was the magnaflow cat. there was some shipping problems...so i didnt get it till 3 weeks later.

[oldschool3g]

well here are some pics of the installation..enjoy

http://i44.photobucket.com/albums/f37/twhonza/0518071227.jpg
http://i44.photobucket.com/albums/f37/twhonza/0518071227a.jpg
http://i44.photobucket.com/albums/f37/twhonza/0518071228.jpg
http://i44.photobucket.com/albums/f37/twhonza/0518071228a.jpg
http://i44.photobucket.com/albums/f37/twhonza/0518071230.jpg
http://i44.photobucket.com/albums/f37/twhonza/0518071234.jpg

[Pico]

Sweet Looking :thumbup:
I cant wait till I install my header

[russiankid]

Looks good. Now we need videos. I wish my oil pan was as dry as yours.

[oldschool3g]

Looks good. Now we need videos. I wish my oil pan was as dry as yours.

it use to be really leaky..but i made sure i fixed that before i installed the headers...so it wouldent leak all over those shinny pipes:)...lol

[russiankid]

it use to be really leaky..but i made sure i fixed that before i installed the headers...so it wouldent leak all over those shinny pipes:)...lol
Yea i have a bent oil pan, so it leaks.:gun:

[Hans]

well here are some pics of the installation..enjoy
http://i44.photobucket.com/albums/f37/twhonza/0518071227.jpg
http://i44.photobucket.com/albums/f37/twhonza/0518071227a.jpg
That looks very NICE and very clean. Haha yeah props to the oil pan :)
Maybe the rattle is cause you don't have the flex pipe anymore.

[oldschool3g]

they fixed the rattling:). they cut a piece of frame off and fixed the bracket and now theres no rattling except for when i stomp on it...lol..but not much. The muffler is pretty loud..maybe cause ive never had an exhaust it just seems loud. ill post a video tomorrow hopefully

[Civic Accord Honda]

that exhust looks tight thats what i want on my next car

[MessyHonda]

looks good. not digging the muffler but at least it flows with your rear end

[oldschool3g]

looks good. not digging the muffler but at least it flows with your rear end

yeah that muffler wasnt what i expected...im thinking of keping it for atleast a month and then getting another one...any suggestions?

[Hans]

I tell ya what man it's hard to please people with mufflers round here! LOL
Any progress with fixing the probs you were having?

[snoopyloopy]

magnaflow, right? that's almost the same muffler i have. :rockon:

[oldschool3g]

I tell ya what man it's hard to please people with mufflers round here! LOL
Any progress with fixing the probs you were having?

LOL..i just dont want it to sound to riced out. but yeah everything is basically fixed...runs like before..just alittle ruff but not to bad...and once i hit the higher rpms...feels like i have NOS...lol

[oldschool3g]

magnaflow, right? that's almost the same muffler i have. :rockon:

yeah its a magnaflow with a 4" tip...hows yours sound?

[snoopyloopy]

yeah its a magnaflow with a 4" tip...hows yours sound?
from the inside, it's not too bad. a little bit of depth to it. sometimes it sounds like a 350z if it's in the right rpm/echo conditions. but from outside, it's pretty ricey. :thumbdn: but be assured that if i'd had it done myself, i would've strived to make it sound better. aka at least used a different muff and probably a resonator of some sort.

[oldschool3g]

from the inside, it's not too bad. a little bit of depth to it. sometimes it sounds like a 350z if it's in the right rpm/echo conditions. but from outside, it's pretty ricey. :thumbdn: but be assured that if i'd had it done myself, i would've strived to make it sound better. aka at least used a different muff and probably a resonator of some sort.

this one has a real deep sound to it...but at some points it sounds ricey sometimes.

[rjudgey]

I'd get a flex pipe on that section just before the Cat or it will crack the welds on the cat or the flange on the header. The ball joint can't take much movement so if your going to be ragging it a bit or your mounts are a bit soft the extra movement will damage the piping. (know this from personal experience!!)

[guaynabo89]

I'd get a flex pipe on that section just before the Cat or it will crack the welds on the cat or the flange on the header. The ball joint can't take much movement so if your going to be ragging it a bit or your mounts are a bit soft the extra movement will damage the piping. (know this from personal experience!!)

agreed


if you get a resonator installed it will put out a more deep pleasing tone compared to the raspiness of just the mufler.

[oldschool3g]

agreed
if you get a resonator installed it will put out a more deep pleasing tone compared to the raspiness of just the mufler.

do you know where i can get a resonator for this muffler?

[ahmad89]

GOOD NOW GIVE THEM TO MMMEEEEHHH!! lol

[oldschool3g]

I'd get a flex pipe on that section just before the Cat or it will crack the welds on the cat or the flange on the header. The ball joint can't take much movement so if your going to be ragging it a bit or your mounts are a bit soft the extra movement will damage the piping. (know this from personal experience!!)

thanks for the advice. do you know what size flexpipe i should get...or does it matter?

[oldschool3g]

heres some pics of the headers..they look so nice:)

http://i44.photobucket.com/albums/f37/twhonza/IMG_0827.jpg
http://i44.photobucket.com/albums/f37/twhonza/IMG_0826.jpg

[Pico]

what car is your strut bar out of?

[oldschool3g]

what car is your strut bar out of?

its from a 92 civic...i still havent done the brackets to fit it correctly. i havent had the time to doing that

[Hans]

heres some pics of the headers..they look so nice:)
http://i44.photobucket.com/albums/f37/twhonza/IMG_0827.jpg
http://i44.photobucket.com/albums/f37/twhonza/IMG_0826.jpg
Those headers are sexy! And your engine is super clean, did you ever pressure wash it? The black stainless steel headers are the only ones that need to be painted with a protective coating right?

[oldschool3g]

Those headers are sexy! And your engine is super clean, did you ever pressure wash it? The black stainless steel headers are the only ones that need to be painted with a protective coating right?

Thanks...nope its never been pressure washed..all done by hand. yeah the black headers are just painted with regular paint...the ones i have are ceramic paint coated.

[Hans]

Thanks...nope its never been pressure washed..all done by hand. yeah the black headers are just painted with regular paint...the ones i have are ceramic paint coated.
Wow that's a lotta love that you show your car. I'm trying to keep it clean, but haven't found the time yet.

[oldschool3g]

Wow that's a lotta love that you show your car. I'm trying to keep it clean, but haven't found the time yet.

It deserves it:)..its been a really good car to me since the day i got it..just returning the favor:)

[MessyHonda]

the A/S does not look pluged.

[guaynabo89]

yeah...... is the second suction tube hole plugged with something?

As far as resonator its just another muffler. When you took your stock exhaust off did you notice anoher big cylinder/cat looking thing after the catalytic converter under the ebrake part of the car? That was the resonator. Its just abother mufler.

The place that did your exhaust shuld have no problem installing a flexpipe instead of that joint on the header pipe. It sould be 2.25". As far as resonator just ask em if they have like a glasspack with perforated core. Something like the cherrybomb mufflers.

[oldschool3g]

the A/S does not look pluged.

Its not plugged with anything..i had it welded shut. you cant really see the weld because they welded it closer to the hole.




Yeah...... is the second suction tube hole plugged with something?

As far as resonator its just another muffler. When you took your stock exhaust off did you notice anoher big cylinder/cat looking thing after the catalytic converter under the ebrake part of the car? That was the resonator. Its just abother mufler.

The place that did your exhaust shuld have no problem installing a flexpipe instead of that joint on the header pipe. It sould be 2.25". As far as resonator just ask em if they have like a glasspack with perforated core. Something like the cherrybomb mufflers.

Oh another muffler? when they took out my exhaust i only saw the downpipe/flexpipe, cat, old piping, and the muffler. thanks..ill be going back in a couple of weeks and get the flexpipe installed and ask them for a glasspack with perforated core.

[Estimated Prophet]

yeah...... is the second suction tube hole plugged with something?
As far as resonator its just another muffler. When you took your stock exhaust off did you notice anoher big cylinder/cat looking thing after the catalytic converter under the ebrake part of the car? That was the resonator. Its just abother mufler.
The place that did your exhaust shuld have no problem installing a flexpipe instead of that joint on the header pipe. It sould be 2.25". As far as resonator just ask em if they have like a glasspack with perforated core. Something like the cherrybomb mufflers.

How does this effect the sound? I have 2.25" piping with Magnaflow cat and muffler and I wouldn't mind quieting it down a bit.

[oldschool3g]

If i get the glasspack...where exactly will it be installed?

[guaynabo89]

a glasspack or resonator/premuffler goes right after the cat. You notice how after the cat the channel under the car is still rather big, thaats because thats where the factory resonator/muffler goes. here look at this pic its right after the cat.

http://www.hondaautomotiveparts.com/auto/jsp/mws/catimgs/13se00_d17.gif

you can get a regular cherrybomb muffler too and use it as a resonator. theyre not the best for flow being theyre louvered core and not perforated but it works prety well.

as far as sound it will tone it down a bit and depending how good it is will help with the annoying humming inside the car. It helps take out the raspiness and brings the tone down a note.

Here are a couple Im looking at for when I go turbo.

This one is a glasspack (cherrybomb style) with louvered core.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=007&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=170089106612&rd=1,1

magnaflow

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=017&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=270118688654&rd=1,1

vibrant

http://http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=002&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=120115420169&rd=1,1

[A20A1]

The black stainless steel headers are the only ones that need to be painted with a protective coating right?


If it was stainless it wouldn't need painting and wouldn't rust as fast. but yes you should strip and coat the black ones.

[Hans]

If it was stainless it wouldn't need painting and wouldn't rust as fast. but yes you should strip and coat the black ones.
I didn't mean to say stainless. whoops :)

[A20A1]

The resonator should have reflective surfaces and some room to expand and slow the exhaust gasses to make sound waves less intense and run into eachother to cancle some of the noise make it sound deeper but it probably wont be any quieter.

Usually the longer the resonator the deeper the exhaust note.

Busted has a 22" long resonator/muffler, I can't say if it's a hollow res or a packed muffler cause I haven't seen inside :)

I don't know if they all come with packing, the ones on the honda did have packing, but I wouldn't invest in something that relied on packing because the packing will deteriorate and the sound can get worse down the road.

You can get a muffler that flows the CFM you need and can even flow more then a 2.5" pipe. So don't think you can't run a regular muffler or that it will be more restriction then straight 2.25" cat back piping or something like that.
Smaller outlets will also help reduce noise while multiple small exist on a muffler will help reduce noise and still provide flow. Say the dual-out was 2" each outlet vs a single 2.25" out or 2.5" outlet. You want to disrupt/delay/weaken sound waves as much as possible but still provide flow.


in the pic below you can see two examples, one has only small slits the other has many corregated like surfaces to reflect sound waves.

http://i23.photobucket.com/albums/b351/Wendy_girl/parts.png

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