I know that this has been asked before but I have several questions about it? I will not dispute that a 2.25 mandral bent exhaust is probably the best choice for the a20, but my question is that in my area it is only possible to get crush bent. So would I be better to get 2.5 inch exhaust to offset the lost of flow that is recieved in the bends when the ID is decreased? I also plan on going with the dual dcoes, opm tri-y header, colt cams race spec regrind, wiseco forged pistons with the rods and crank shotpeened and polished, and the entire engine balanced, msd ignition, and a 50-75 hp nitrous fogger setup.
Thanks in advance and any help is appricated!!!!
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