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

Cat-Back Exhaust
Brand: Milltek
Part #: SSXAU420
SKU: MK-SSXAU420
Direct factory replacement cat-back exhaust system for Audi S3 8V and 8V.2 Sportback (non-GPF models). Hand-finished T304L stainless steel construction with mandrel-bent piping and quad round Cerakote Black trims. Engineered to deliver refined performance tone while maintaining OE+ fitment-no modification required. Uses OEM valve motor from your original exhaust. Resonated design eliminates drone at cruise while preserving full-throttle character through the mid-range and top-end powerband. CNC-formed end caps and precision hangers ensure factory-quality installation. All Milltek systems are dyno-tested and EC-approved for street and closed-course use. Key Details: • T304L stainless steel, hand-finished construction • Mandrel-bent piping for optimized flow • Direct OEM+ fitment-uses existing hangers and valve motor • Resonated (quieter) configuration for street driving comfort • Quad round Cerakote Black finished tips • EC-approved and decibel-tested • Fits Audi S3 8V and 8V.2 Sportback (non-GPF) Milltek delivers dyno-proven performance and engineered sound character across a global range of European, Japanese, and American performance vehicles. 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