Milltek Resonated GPF-Back Exhaust - INEOS Quartermaster - Cerakote Black Tips - SSXINE126

Milltek Resonated GPF-Back Exhaust System for INEOS Quartermaster (Petrol). Direct replacement for the factory gasoline particulate filter-equipped exhaust, engineered to improve exhaust flow and refine engine tone. Requires cutting of OE system for installation.

Constructed from T304L stainless steel with premium Cerakote Black finish tips and hidden clamps for clean aesthetics. The resonated design targets OEM resonance points to eliminate drone while maintaining a refined, sportier character at full throttle. Mandrel-bent 2.75" (70mm) primary pipe diameter optimizes scavenging efficiency.

• T304L stainless steel construction with hand-finished welds
• Mandrel-bent 70mm primary pipes for optimized flow
• Resonated design for OE+ sound character without excessive drone
• Premium Cerakote Black polished tips with hidden clamps
• Requires OE system cutting - professional installation recommended
• Covers Petrol variants of INEOS Quartermaster

This GPF-back system is developed in-house to balance performance gains with refined acoustic character - not just loudness.

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.