Does anybody know the average lifespan of a cat? I'm debating wether or not to get a dynomax cat but I can't tell wether or not my current one is ok.I've had the car since it was new and had it replaced 8 years ago,is it's time up? I know that a high flow cat will give moderate hp gains but I dont want my car to loudmaybe my cat is clogged and thats why my accel sucks.
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