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

Cat-Back Exhaust
Brand: Milltek
Part #: SSXAU859
SKU: MK-SSXAU859
The Milltek Road+ Cat-Back Exhaust System is engineered for Audi B9 RS4 Avant and B9 RS5 Coupe (2018-2019, non-GPF models). Direct factory fitment with OEM hangers; no modification required. Constructed from T304L stainless steel with mandrel-bent 2.76" (70mm) primary piping and hand-finished burnt titanium oval trims. The Road+ platform delivers a mid-range sound character-positioned between fully resonated and non-resonated designs-balancing full-throttle tone with everyday refinement. Engineered to optimize mid-range exhaust scavenging without excessive cabin resonance. Fitment • Audi B9 RS5 Coupe: 2018-2019 (non-GPF) • Audi B9 RS4 Avant: 2018-2019 (non-GPF) T304L stainless construction resists corrosion and thermal stress. Direct OEM compatibility ensures precision fitment without compromise. 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