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

Cat-Back Exhaust
Brand: Milltek
Part #: SSXAU148
SKU: MK-SSXAU148
Milltek Non-Resonated Cat-Back Exhaust System for Audi TT MK1 150/180 2WD with 100mm JET polished stainless steel trim. Direct factory fitment replacement engineered to increase exhaust flow, enhance throttle response, and deliver a pronounced, track-focused tone. Constructed from T304L stainless steel with mandrel-bent 2.50" (63.5mm) primary piping and CNC-formed 100mm polished trim tip. Non-resonated design eliminates cabin drone suppression for a raw, full-throttle character. Hand-finished joints and OEM+ fitment using factory hanger points - no modification required. Dyno-tested for repeatable power gains across the RPM band. System Specifications • Pipe diameter: 2.50" primary (63.5mm) • Material: T304Lstainless steel • Configuration: Non-resonated cat-back (closed-course/track use) • Trim: 100mm polished JET finish • Fitment: Audi TT MK1 150 PS / 180 PS 2WD (1998-2006) • Installation: Direct replacement, OEM hangers, no welding Milltek exhausts are engineered for drivers who understand the difference between flow dynamics and resonance tuning. Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Cat-Back Exhaust
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Cat-Back Exhaust
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Cat-Back Exhaust
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