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

Cat-Back Exhaust
Brand: Milltek
Part #: SSXAU666
SKU: MK-SSXAU666
Milltek Non-Resonated Cat-Back Exhaust System for Audi B8 A4 2.0 TFSI S-Line (manual and automatic). Direct factory fitment replacement using OEM hangers, no modification required. 70mm mandrel-bent T304L stainless steel construction with hand-finished Cerakote Black quad-outlet trims. Engineered to deliver dyno-proven performance gains through optimized 70mm bore and non-resonated design. Aggressive full-throttle tone engineered for driver engagement without secondary silencers. Hand-welded joints and CNC-formed collectors ensure durability and precise fitment to OEM mounting points. Premium T304L stainless resists corrosion; Cerakote Black finish maintains aesthetic integrity across exhaust cycles. Fitment • Audi A4 B8 2.0 TFSI S-Line (2008-2011) • Manual and automatic transmission variants • Cat-back configuration: replaces from catalytic converter rearward • Direct OEM fitment; factory hanger compatibility This non-resonated design is engineered for closed-course performance; verify local emissions compliance for street use in your jurisdiction. 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