Porsche 997.1 Carrera Cat Bypass Pipes CAT BACK QUAD 4.5" TIPS WITH AFM VALVES Custom interior renderings/designs are available

Custom interior renderings/designs are available

and increased power

Interested in installing these headers yourself

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

Porsche 997.1 Carrera Cat Bypass Pipes CAT BACK QUAD 4.5" TIPS WITH AFM VALVES Custom interior renderings/designs are availableDEVELOPMENT: 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.