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Originally Posted by 986silverbullet
Hey hows it going
i was wondering if i should Take off my Secondary Cats from what i hear there just there to quiet down the exhaust and if i do so my CE light shouldnt come on and it should Add quite a bit more HP
If any one has Eliminated there 2nd Cats Please Reply
Thanks......
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What you are referring to is the Resonator, not a Cat. FYI, the 986 doesnt have the resonator. Typically, the Resonator is located in BETWEEN the Cat. converter and the Muffler...Yes, this is a simple mod. you can do this with other Euro cars(MB,BMW,etc...) that can pretty much increase the note of a stock exhaust system. There is NO HP gains associated with this mod. I already did this mod. on my 02 BMW M5 and 01 MB BRABUS E-Class. This is a cheap way to increase the exhaust note without spending too much $$$. The CE light wont get trigerred since the resonator is AFTER the Cat. converter, and it is still smog compliant.