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[sapperk]

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put some heat wrap on that bad boy...that'll solve heat issues under hood...but then you'd need new garage decorations

i dunno what kind of emission standards you have in washington state...but even if you don't put that header on you could gut the cats...i mean we all know how restrictive they are but it just seems so much worse when you actually pull the thing off and see all that tight honeycomb

[Galcobar]

put some heat wrap on that bad boy...that'll solve heat issues under hood...but then you'd need new garage decorations

i dunno what kind of emission standards you have in washington state...but even if you don't put that header on you could gut the cats...i mean we all know how restrictive they are but it just seems so much worse when you actually pull the thing off and see all that tight honeycomb

Ye gods, do NOT gut the cat.

Gutted cats are effective only in creating turbulence in your exhaust stream and royally screwing up the smooth flow of gas out of the engine. Having the conduit for your exhaust rapidly increase in diametre and then just as quickly neck back down is a great way to allow the gas to expand, cool, slow and produce backpressure (no backpressure is not a good thing, even for NA engines).

That tight honeycomb is actually a highly efficient design which flows the exhaust gases almost as well as a straight, properly sized pipe. If the performance difference between a proper pipe and a cat matters to you, I hope you always remember to empty your bladder before driving too, as that makes about as much difference.

If you're running a stock cat and are concerned it's clogged (which requires a screwy AF ratio, bad gas or some other form of contamination), pick up a quality aftermarket piece such as a Car Sound high-flow cat (parent company of MagnaFlow).

Basic logic -- you and your car will perform better in clean air. And the air will be around to use a lot longer than your car.