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

Cat-Back Exhaust
Brand: Milltek
Part #: SSXAU559
SKU: MK-SSXAU559
The Milltek Race Non-Resonated Cat-Back Exhaust System is engineered for the Audi B8 S5 3.0 TFSI Coupe and Cabriolet, delivering maximum sound character and dyno-proven performance gains as a direct factory replacement. Constructed from T304L stainless steel with mandrel-bent piping (2.37" / 60.30mm diameter), this system features hand-finished quad Cerakote Black tips and uses OEM hangers for seamless integration. No modification required. The non-resonated design eliminates resonance at full throttle, engineered for closed-course and track applications where an aggressive, unfiltered exhaust note is desired. System Specifications • Material: T304L stainless steel, mandrel-bent • Pipe Diameter: 2.37" (60.30mm) • Resonance: Non-resonated (race specification) • Tip Configuration: Quad outlet, hand-finished Cerakote Black • Fitment: Direct cat-back replacement, OEM+ fit • Installation: No factory modification required Milltek's precision engineering delivers the sound character and performance you demand. 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