
Cat-Back Exhaust
Milltek Resonated Cat-Back Exhaust | Lexus GX 550 3.4 Turbo V6 - Burnt Titanium TipsMilltek

Cat-Back Exhaust
Brand: Milltek
Part #: SSXAU357
SKU: MK-SSXAU357
The Milltek Race Non-Resonated Cat-Back Exhaust System is engineered for the Audi B8 S5 3.0 TFSI Coupe and Cabriolet. This 2.37" (60.30mm) dual outlet system replaces the factory cat-back with direct fitment using OEM hangers, requiring no modification. Constructed from hand-finished T304L stainless steel with mandrel-bent piping, this system delivers aggressive full-throttle character with minimal interior drone through precision acoustic tuning. Polished oval trim finishes provide OEM+ visual integration. Non-resonated configuration is engineered for closed-course and track use where peak exhaust note is prioritized over street refinement. Fitment • Audi B8 S5 Coupe (3.0 TFSI) • Audi B8 S5 Cabriolet (3.0 TFSI) • Direct cat-back replacement - turbo to rear axle • Uses factory mounting points Specifications • Pipe diameter: 2.37" (60.30mm) • Material: Hand-finished T304L stainless steel • Configuration: Non-resonated (race) • Outlet: Dual polished oval trims • Installation: No modification required Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Cat-Back Exhaust
Milltek Resonated Cat-Back Exhaust | Lexus GX 550 3.4 Turbo V6 - Burnt Titanium TipsMilltek

Cat-Back Exhaust
Milltek Resonated Cat-Back Exhaust | Lexus GX 550 3.4 Turbo V6 - Brushed Titanium TipsMilltek

Cat-Back Exhaust
Milltek Resonated Cat-Back Exhaust | Lexus GX 550 3.4 Turbo V6 - Cerakote Black TipsMilltek

Cat-Back Exhaust
Milltek Resonated Cat-Back Exhaust | Lexus GX 550 3.4 Turbo V6 - Polished TipsMilltek