Milltek Resonated Particulate Filter Back - Ineos Quartermaster B58 - Polished Tips - SSXINE127

Milltek resonated particulate filter-back exhaust system for the Ineos Quartermaster (petrol, B58 engine). Engineered to restore and enhance engine tone after OPF installation, with premium polished tips and hidden clamps for factory-style integration. Requires OE system to be cut during installation.

The B58-powered Quartermaster benefits from resonance tuning that compensates for the sound-dampening characteristics of the gasoline particulate filter. This resonated design delivers refined tone dynamics and improved acoustic character at full throttle while maintaining street-legal compliance. Hand-finished T304L stainless steel construction with mandrel-bent internals and CNC-formed collector. Premium polished tips and hidden clamp design preserve OEM+ aesthetics.

• Direct fitment: Ineos Quartermaster (petrol, B58 engine, 2024+)
• Type: Resonated OPF-back system
• Construction: T304L stainless steel, mandrel-bent, hand-finished
• Finish: Premium polished tips with hidden clamps
• Installation: Requires OE system to be cut; no other modifications needed
• Use case: Street and track; engineered tone character, not resonance elimination

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.