Billy Boat Exhaust - Audi B7 S4 Quattro 4.2L (2006-2008) Cat Back Exhaust System with Quad Round Tips

Are you looking to improve the sound and peformance of your Audi?  Billy Boat exhaust systems start with T-304 stainless steel, the highest quality material practical for after-cat exhaust applications. B&B exhaust tubing is mandrel bent on sophisticated CNC machinery for a precise fit and uninterrupted exhaust flow. B&B's use of T-304 stainless steel flanges offers high strength and complete resistance to harsh elements. All hangers, resonators, and tips are T-304 stainless steel as well.

Specifications:

• Center Muffler Section
• Rear Muffler Section(s) with Quad Round Polished Tips (Black Tips Available)
• 3 1/2″ Quad ROUND Double-Wall Tips.
• Mandrel bent from the highest-grade T-304 stainless steel.
• Designed, tested, and manufactured to the finest hand-made integrity found in any exhaust system.
• Installation Clamps & Hardware