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If I did it, I would put them after the headers and before the cats. More beneficial for the track days.
I would just have to hit the switch at T5 and then open at T8 I run Laguna Seca 92db
Jerry
Originally Posted by 1999Porsche911
If you did that with no modification to fuel control, you would most likely lose performance (and probably damage the engine) and you would definately hurt your powerband regardless of what else you did to your NA engine.
I agree. I was thinking doing it after the cat cells on that small longer area of the cat pipe but before the muffler.
Doing it before the cats might also trigger a CEL since there won't be a lambda-delta between the two O2 sensors.
02-14-2008, 12:20 PM
