Milltek Non-Resonated Cat-Back Exhaust - Mini F66 Cooper S - Polished Tips - SSXM492

Milltek Non-Resonated Cat-Back Exhaust System for Mini F66 Cooper S (2-door, OPF/GPF models). Direct factory fitment using OEM hangers; requires diffuser overlay installation with minor cutting to factory bumper support. Hand-finished T304L stainless steel construction with polished exit tips.

3" (76.2mm) mandrel-bent piping engineered for enhanced exhaust scavenging and improved flow characteristics. Non-resonated design eliminates the OE silencer element, delivering a sharper, more pronounced engine tone at full throttle while maintaining street-legal operation. Material specification: T304L stainless steel with TIG-welded construction and corrosion-resistant finish.

Fitment Details

• Fits: Mini F66 Cooper S (2-door configuration)
• OPF/GPF compliant backbox system
• Includes Milltek design diffuser overlay (installation requires minor factory bumper modification)
• Polished stainless steel exit tips
• Uses factory exhaust hanger points
• No welding or permanent modifications to vehicle frame required

Each system is individually hand-finished and tested before dispatch. This non-resonated configuration is optimized for closed-course and track use, though remains street-legal in most jurisdictions-verify local noise regulations before installation.

Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Specifications

• Pipe diameter: 76.2mm (3.00")
• Fitting time: 3 to 4 hours, including removing the factory system

Fitment

• New Mini > MK4 > Cooper S F66 2.0T B48 > 2024 and Later

• Free US shipping on orders over $250.
• Free pickup at our Dallas shop, usually ready within 24 hours.
• Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
• Want it installed? Book the install at thegbmotors.com.

Full details are on our shipping and returns page.