Porsche 997.1 Carrera Cat Bypass Pipes CAT BACK QUAD 4.5" TIPS WITH AFM VALVES There is absolutely no need

There is absolutely no need to re-flash your ECU after installing an IPD Plenum

The disk pads are a carbon/ceramic combination

and increased power

our precision-tuning services are the best way to ensure that your key components and ECU are working cohesively for safe and dependable long-term performance

Optional genuine OEM replacement gaskets to replace your old or worn gaskets

Porsche 997.1 Carrera Cat Bypass Pipes CAT BACK QUAD 4.5" TIPS WITH AFM VALVES There is absolutely no needDEVELOPMENT: The factory 997. 1 Carrera catalytic converters are quite restrictive and upgrading them is a common modification. We took a fresh look at the exhaust design to try and create the best possible solution. Side by side sound comparisons with our split bank design and an X pipe design revealed that an x pipe lowers yields a hollower exhaust tone and cuts out desirable deeper frequencies on the 997. 1 the difference is very noticeable.