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

Cat-Back Exhaust
Brand: Milltek
Part #: SSXAU411
SKU: MK-SSXAU411
Milltek Non-Resonated Cat-Back Exhaust System for Audi B8.5 S5 3.0 TFSI Coupe and Cabriolet. Direct factory fitment replacement using OEM hangers; no modification required. 2.37" (60.30mm) mandrel-bent T304L stainless steel construction with quad black velvet outlet trims. Non-resonated design engineered for full-throttle sound character and optimized exhaust flow. Uses factory mounting points and valve-compatible integration. Hand-finished T304L construction ensures corrosion resistance and longevity. Decibel-tested for consistent acoustic performance across throttle range. Fitment • Audi S5 B8.5 Coupe (2013-2017, 3.0 TFSI) • Audi S5 B8.5 Cabriolet (2013-2017, 3.0 TFSI) • Cat-back system; retains factory downpipe and secondary catalytic converters • OEM+ fitment; uses factory resonance tuning reference points EC Approved where applicable, manufactured to precision standards in-house. 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