Milltek Road+ GPF-Back Exhaust - Ineos Quartermaster B58 - Premium Cerakote Black Tips - SSXINE141

Milltek Road+ Part-Resonated GPF-Back exhaust system for Ineos Quartermaster (petrol, B58 engine, from late 2018). Direct factory fitment using OEM hangers-no modification required. Engineered to restore and enhance the exhaust note compromised by the factory Gasoline Particulate Filter, delivering a refined tone with improved sound character and styling.

T304L stainless steel construction, mandrel-bent throughout. Hand-finished Premium Cerakote tips. Part-resonated design balances sound dynamics with refined full-throttle character-louder than stock, engineered not obnoxious. Meets emissions compliance while delivering the performance soundtrack your Quartermaster deserves.

• T304L stainless steel, mandrel-bent construction
• Part-resonated design for refined tone with presence
• Premium Cerakote-coated tips
• OEM+ fitment-uses factory hangers and mounting points
• Engineered for B58 engine dynamics and backpressure optimization
• Direct replacement for factory GPF-back system

Milltek performance exhaust systems are developed in-house, tested at global proving grounds, and hand-finished to precision standards.

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
• E-marked for road use

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.