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

Cat-Back Exhaust
Brand: Milltek
Part #: SSXAU640
SKU: MK-SSXAU640
Milltek Resonated Cat-Back Exhaust System for Audi B9 S4 and S5 (non-Sport Differential models). Direct factory fitment, 2.50" (63.50mm) mandrel-bent T304L stainless steel construction with quad GT-100 polished tips. Engineered to deliver enhanced exhaust flow and an OE+ tone signature. Hand-finished T304L stainless steel throughout, using OEM hangers and factory mounting points for drop-in installation. The resonated chamber design fine-tunes the resonance point for a sportier note without excessive interior drone. Dyno-proven gains in exhaust scavenging efficiency across the 3.0L turbo V6 powerband. Fitment • Audi S4 B9 3.0 Turbo V6 Saloon/Sedan & Avant (non-Sport Differential) 2016+ • Audi S5 B9 3.0 Turbo V6 Sportback (non-Sport Differential) 2017+ 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