Porsche 944 Cat Back Exhaust System

Full stainless steel cat-back exhaust system for both turbo and non-turbo Porsche 944s designed and built by Billy Boat Performance Exhausts. A fantastic style, performance, and exhaust note upgrade that guarantees HP and Torque gains across the RPM range.

All systems are complete T304 Stainless Steel and come fully polished with 4.5" wide and 3" tall oval exhaust tips. Each kit is complete after the cat and retains the factory mounting configuration. Sound is mellow with a robust exhaust note and minimal interior resonance. After-cat systems retain all emission devices and are 50-state legal. The 944 Turbo kit is also available complete from the turbo-back, eliminating the catalytic converter¹, for an impressive turbo response and performance gains. A round, straight through muffler is also available for the 944 Turbo when sound level is not a concern.