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- NHP Racing Exhaust Headers (Catless) fits Porsche 997.2 C2/ C4 / C2S / C4S / GTS
NHP Racing Exhaust Headers (Catless) fits Porsche 997.2 C2/ C4 / C2S / C4S / GTS
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Porsche 997.2 NHP Racing Exhaust Headers (Catless Version), manufactured by NHP Exhaust with the highest quality of T-304 Stainless, equal length 44mm primary pipes merging to a F1 3-1 merge collector. These have been designed with same style flanges like the factory originals, take a look at the pictures we have the best flanges for these 997.2 headers, this flange design offers the highest weight reduction, they weigh 6lbs each and eliminates any chances of flange warping.
These are meant to be used for racing purposes such has track use because these eliminate the catalytic converters. By installing these you will get a "check engine light" unless your ECU has been flashed with performance software. These are designed for off-road purposes.
Due to our flange design we highly recommend that you re-use your OEM steel gaskets, you can normally re-use the same ones without any issues.
For the State of California our Exhaust Products are not C.A.R.B.
Our Exhaust products have no guarantees about passing emissions in your state.
Our High Performance Exhaust with sports catalytic converters and cat-bypass exhausts are built and meant for off-road purposes.
Our Exhaust Products “Lifetime Warranty” does not cover catalytic converter error codes.
Please note that due to the deletion of your catalytic converter you will encounter a check engine light. You may want to flash your ECU to avoid that or install a 02 Sensor bung to help eliminate the possibility of a check engine light.