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

Cat-Back Exhaust
Brand: Milltek
Part #: SSXFD428
SKU: MK-SSXFD428
The Milltek Valved Cat-Back Exhaust with X-pipe is engineered specifically for the Ford Mustang 5.0 V8 GT (S650 Fastback, 2024+). This direct-fit system replaces the OEM exhaust, delivering improved flow dynamics and an adjustable sound character through active valve management. Constructed from T304L stainless steel with hand-finished burnt/blue titanium tips, the system features a 2.76" (70mm) mandrel-bent main pipe and optimized X-pipe configuration. The valved design allows you to dial in your preferred tone-from refined daily driving to aggressive full-throttle character-while maintaining OEM valve compatibility and integration with factory sensor systems. Direct fitment uses OEM hangers and requires no modification. Specification Highlights • Pipe diameter: 2.76" (70mm) mandrel-bent T304L stainless • X-pipe construction for enhanced scavenging and exotic note • Active valved system with OEM valve integration • Quad exhaust tips: burnt/blue titanium finish • Direct factory fitment-no hangers or brackets modified • Engineered for S650 Fastback only Each system is dyno-tested and finished by hand to Milltek standards. Designed in Tennessee and manufactured in the UK with 40+ years of performance exhaust heritage. Tested on the Tail of the Dragon.

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