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

Cat-Back Exhaust
Brand: Milltek
Part #: SSXAU515
SKU: MK-SSXAU515
Milltek Non-Resonated Cat-Back Exhaust System for Audi B7 A4 2.0 TFSI Quattro and DTM (manual models). This 2.50" mandrel-bent system replaces the factory cat-back in its entirety, delivering engineered tone character and measurable exhaust flow gains without resonance chambers. Hand-finished T304L stainless steel construction with CNC-formed GT100 polished trim tips. Direct factory fitment using OEM hangers-no modification required. Non-resonated design eliminates stock muffler resonance points, unlocking the engine's full acoustic signature across the rev range. Fitment & Specifications • Audi B7 A4 2.0 TFSI Quattro (manual transmission) • Audi B7 A4 DTM (manual transmission) • Pipe diameter: 2.50" (63.5mm) mandrel-bent • Material: T304L stainless steel, hand-finished • Resonance: Non-resonated (track-focused tone character) • Tips: GT100 polished stainless steel • Installation: Direct replacement, OEM hanger compatible Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Cat-Back Exhaust
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