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

Cat-Back Exhaust
Brand: Milltek
Part #: SSXAU408
SKU: MK-SSXAU408
Direct factory replacement cat-back exhaust system for Audi B8.5 S4 and S5 models (2012-2016). Hand-finished T304L stainless steel construction with electronic valve control and resonated design for OEM+ sound character without excessive decibel levels. Constructed from premium T304L stainless steel with mandrel-bent 2.37" (60.30mm) bore tubing. Features Valve-Sonic electronic valve actuators integrated into the rear silencers for seamless OE valve compatibility. Resonated chambering tuned to the B8.5 platform eliminates drone while preserving full-throttle tone. Direct OEM+ fitment using factory hangers and mounting points-no modification required. Fitment • Audi B8.5 S4 3.0 V6 Supercharged (2012-2016) • Audi B8.5 S5 3.0 TFSI Coupe & Cabriolet S-Tronic (2012-2016) • Audi B8.5 S5 TFSI Sportback (2012-2016) Available with polished or gloss-black titanium trim options. EC type-approved for EU markets; US versions engineered for closed-course performance use. 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