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

Cat-Back Exhaust
Brand: Milltek
Part #: SSXAU667
SKU: MK-SSXAU667
Milltek Non-Resonated Cat-Back Exhaust System for Audi B8 A4 2.0 TFSI S-Line (Tiptronic). Direct factory fitment replacement using OEM hangers; no modification required. Hand-finished T304L stainless steel construction with mandrel-bent 70mm (2.76") primary pipes and quad-outlet Cerakote Black trim. Non-resonated design engineered for full-throttle character and aggressive tone on closed-course and track use. Constructed entirely in-house from raw material to finished exhaust. Fitment • Audi B8 A4 2.0 TFSI S-Line with Tiptronic transmission • Cat-back system: retains factory downpipe and secondary catalytic converters • Direct OEM+ fitment using factory mounting points Construction & Materials T304L stainless steel, mandrel-bent throughout. Quad polished stainless outlets with Cerakote Black protective trim. Hand-finished welds and CNC-formed collector ensures precision fit and durability. Non-resonated design eliminates resonance chambers for unfiltered exhaust note character. Engineered to Exhilarate. 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