Milltek Resonated Particulate Filter Back - INEOS Quartermaster - Polished Tips - SSXINE122

The Milltek Resonated Particulate Filter Back Exhaust System is engineered for the INEOS Quartermaster (petrol). This cat-back system replaces the factory exhaust with T304L stainless steel construction, delivering improved exhaust flow and an engineered OE+ tone character.

Built from T304L stainless steel with mandrel-bent piping, the system features a resonated chamber tuned to the Quartermaster's exhaust frequency, eliminating drone while preserving a refined, performance-oriented note. Polished tips complete the aesthetic upgrade. Some cutting of the original system is required during installation; professional fitting is recommended.

System Specifications

• Pipe diameter: 2.75" (70mm) mandrel-bent
• Material: T304L stainless steel, hand-finished
• Design: Resonated for OE+ tone and flow optimization
• Fitment: Particulate filter back (GPF back) cat-back configuration
• Finish: Polished stainless tips

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.