Porsche 997.1 Carrera Cat Bypass Pipes CAT BACK QUAD 4.5" TIPS WITH AFM VALVES our precision-tuning services are the

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

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

H&R Springs are shot-peened to increase their life by more than 200%

*Integrates directly to stock AFM valve actuator (No Drone during 4 mode)

Porsche 997.1 Carrera Cat Bypass Pipes CAT BACK QUAD 4.5" TIPS WITH AFM VALVES our precision-tuning services are theDEVELOPMENT: 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.