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

Cat-Back Exhaust
Brand: Milltek
Part #: SSXAU686
SKU: MK-SSXAU686
Direct factory-fit performance cat-back exhaust system for the Audi B9 S5 3.0 V6 Turbo Coupe and Cabriolet (non-Sport Diff models). The Milltek 2.50" non-resonated design delivers engineered tone with full-throttle character and measurable exhaust flow improvement over OEM. Hand-finished T304L stainless steel construction with mandrel-bent tubing and CNC-formed collector. Quad GT-100 gloss black exit trims. Direct OEM hanger compatibility-no modification required. Uses factory mounting points for seamless integration. Fitment • Audi B9 S5 3.0L V6 Turbo Coupe (2017-2024) • Audi B9 S5 3.0L V6 Turbo Cabriolet (2017-2024) • Non-Sport Differential models only Specifications • Pipe diameter: 2.50" (63.50mm) mandrel-bent • Material: T304L stainless steel • Design: Non-resonated for open-throttle tone • Trims: Quad GT-100 gloss black • Installation: Cat-back (OEM downpipe and cats retained) OEM+ fitment with precision engineering-the difference between off-the-shelf and hand-finished. 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
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Cat-Back Exhaust
Milltek Resonated Cat-Back Exhaust | Lexus GX 550 3.4 Turbo V6 - Cerakote Black TipsMilltek

Cat-Back Exhaust
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