Dinan Free Flow 304 Stainless Steel Performance Exhaust with Twin 89mm Black Tips for BMW M240i F22 (2017) - Helmholtz Drone-Reduced, Bolt-On B58 Coupe

Dinan stainless sport system with twin 89 mm black tailpipes for BMW 2 Series M240i F22

Transform the soundtrack and character of your 2017 BMW M240i F22 with this premium Dinan stainless rear section. Crafted from robust 16 gauge 304-grade stainless and finished with stealthy 89 mm black ceramic tailpipe finishers, it delivers a richer, deeper tone on your B58 3.0 turbo while keeping the cabin calm at cruising speeds. The Helmholtz resonance chamber technology targets low‑rpm boom for a drone-reduced drive, and the direct-fit design mounts to the factory hangers for a straightforward bolt-on upgrade.

We have fitted this system in-house for UK customers and the feedback has been consistently superb. Fitment precision, sound quality and day-to-day usability make it a favourite for enthusiasts who want a serious sound upgrade without sacrificing refinement.

Highlights

• Flow-optimised design for sharper throttle response and improved exhaust gas velocity
• Helmholtz chamber tuning minimises in-cabin resonance for relaxed motorway cruising
• Durable 16 gauge 304 stainless construction for long-term corrosion resistance
• Twin 89 mm black ceramic coated tailpipes for a subtle, motorsport-inspired look
• Direct-fit to OEM mount points for an easy, bolt-on installation
• Refined at light throttle, assertive under load with the addictive burbles and pops M240i drivers love

Why it belongs on your F22

Looking for a BMW 2 Series M240i sound upgrade that balances performance and comfort. This Dinan rear section gives your B58-powered coupe a stronger voice without the unwanted drone. The high-quality materials, ceramic-coated tips and resonance-cancelling design provide the premium finish and everyday civility you expect from a top-tier sports system.

Compatibility

- 2017 BMW M240i F22 coupe, B58 petrol

Fitting service

Direct bolt-on using factory hangers. Professional installation available at MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

What UK owners are searching for

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