Gutting the Cat..
Originally Posted by evo/X
does removing the cat or gutting the cat and putting a pipe inside(same thing except appearance) make more horse power????........or sound louder?
Originally Posted by evo/X
have any evo owner done this and had specific warranty void issues with doing this....or even like a cat back exhaust?
Originally Posted by AlwaysinBoost
Gutting the cat out doesn't produce as much HP as just running a test pipe, it may actually rob power on some cars. Reason is the exhaust gasses will expand to fill the empty cat chamber only to then have to bottle neck back down to exit the cat...
I too was thinking about gutting the cat, but I'm holding off for the complete TBE w/ test pipe. In PA there are two types of the emission state inspections. Which type of inspection is determined by your county of residence. I'm lucky and only have to pass a visual exam of the exhaust. I'll probably use method of using the heat shield of the factory cat to disquise the test pipe. Is there any problem of the shield fitting around the larger diameter pipe of say a Buscher test pipe?
Charlie
Charlie
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flyinmonkey101
Evo X Engine / Turbo / Drivetrain
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Dec 27, 2016 08:46 PM
