Milltek Road+ Particulate Filter-Back - Ineos Quartermaster B58 - Burnt/Blue Titanium Tips - SSXINE140

Milltek Road+ Part-Resonated Particulate Filter-Back exhaust system for the Ineos Quartermaster (B58 petrol). Engineered to restore exhaust note and performance lost to the OPF (Gasoline Particulate Filter), this system delivers a refined yet engaging tone with improved sound character and styling via hand-finished Burnt/Blue titanium tips.

Constructed from T304L stainless steel, mandrel-bent throughout. The part-resonated design balances acoustic refinement with full-throttle presence-no drone, optimized for daily driving and spirited use. Direct factory fitment using OEM hangers; no modification required. Hand-finished titanium tips available in Burnt/Blue finish. Dyno-tested to confirm power recovery post-OPF.

Fitment:

• Ineos Quartermaster (Petrol, B58 engine)
• From late 2018 onwards (OPF-equipped models)
• OPF-back configuration-removes OPF and replaces with performance system
• Uses OEM mounting points and hangers

Milltek exhaust systems are engineered to exhilarate: real dyno-proven gains, tuned sound character, OEM+ fitment.

Fits OE system.

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

Specifications

• Pipe diameter: 70mm (2.76")
• Fitting time: 1 to 2 hours, including removing the factory system

Fitment

• INEOS > Quartermaster > 3.0 (B58) Petrol (OPF & Non-OPF Vehicles) > 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.