Milltek Sport Cat-Back OPF/GPF Bypass Exhaust with Quad GT-100 Polished Tips for BMW M240i Coupé (G42 xDrive, 2022+) - No OE Cutting Required - Requires Stage 2 ECU or OPF/GPF Bypass Module - SSXBM1223

BMW M240i G42 xDrive Performance Exhaust Upgrade with Quad 100 mm Polished Tailpipes by Milltek – Part No. SSXBM1223

Wake up the B58 engine and give your BMW M240i Coupé G42 the soundtrack and road presence it deserves. This UK‑built Milltek rear system replaces the factory sections from behind the catalysts, removes the OPF and GPF restriction, and adds stunning quad GT‑100 mirror‑polished tips for a purposeful, OEM‑plus look. It is a precision, direct‑fit solution with no cutting of the stock pipework required.

• Part number SSXBM1223 – exact fit for G42 M240i xDrive models from 2022 onwards
• Free‑flow particulate filter bypass for improved gas flow and sharper throttle response
• Quad 100 mm polished tailpipes for an aggressive, factory‑style finish
• Direct bolt‑on to factory locations – no trimming or welding of the original system
• Crafted in the UK from high‑grade T304 stainless steel for long‑term durability
• Constant‑radius mandrel bends to maintain velocity throughout the system
• Engineered for a deeper, more engaging tone while remaining civil at cruising speeds

Build quality you can trust

Manufactured from premium non‑magnetic T304 stainless, this Milltek system is designed to resist corrosion and discolouration. Precision jigging ensures an accurate fit, with smooth, consistent pipework that promotes efficient flow and reliable sealing. The result is a clean installation and a premium finish that complements the G42 platform.

Sound and driving feel

Expect a richer, more characterful note that brings out the best of the turbocharged straight‑six without unwelcome cabin boom. The freer‑flowing layout helps the engine breathe, enhancing response and adding excitement on throttle while remaining refined on the motorway.

Compatibility and requirements

• Vehicle: BMW M240i Coupé G42 xDrive with OPF and GPF hardware
• Model years: 2022 onwards
• Configuration: cat back with particulate filter bypass sections and quad GT‑100 polished tips
• No cutting of the original exhaust needed
• Requires Stage 2 ECU calibration or an OPF/GPF bypass module for correct operation

Professional fitting

For a seamless installation and setup, book your car in with MJ Modifications in Warwickshire. We offer supply and fit with care and attention to detail. Request a tailored quote at info@mjmodifications.co.uk.

Tried and loved by our customers

We have installed this system on multiple G42 cars and the feedback has been consistently positive. Owners praise the enhanced soundtrack, the quality of the stainless construction, and the bold quad‑exit look that suits the M240i perfectly.

Quick reference

• Brand: Milltek Sport
• SKU: SSXBM1223
• Tailpipe style: GT‑100, 4 x 100 mm, polished
• Material: T304 stainless steel
• Fit: BMW M240i G42 xDrive 2022+

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