IRL D4 S8 Valved Catback Exhaust Corvette Pre-drilled provisions to make for

Pre-drilled provisions to make for a direct bolt-on installation

Rear Fog Light / 4th Brake Light / F1 Style Reverse

Fits all F8x M3 / M4's with the S55 engine

• Precision CNC Machined Turbo Connections

but it's not the whole story

IRL D4 S8 Valved Catback Exhaust Corvette Pre-drilled provisions to make forS8 D4 systems are made to order 2 3 week production time. Our high performance Catback replaces the restrictive and heavy OEM system for improved flow increased power and sound without sacrificing drivability. Expect more aggressive tone from your S8. The IRL catback has no more restrictions and now you can expect to see an increase in 27 whp and 37 ft lbs of tq. Fits all Audi D4 S8 (2010 2017) Adds 27 whp and 37 ft lbs of tq Improved sound &