Performance M
Dinan Free Flow 304 Stainless Performance Exhaust, Helmholtz Tuned, Twin 89mm Black Ceramic Tips, BMW 3 Series GT F34 335i N55 (2014-2016)
Dinan Free Flow 304 Stainless Performance Exhaust, Helmholtz Tuned, Twin 89mm Black Ceramic Tips, BMW 3 Series GT F34 335i N55 (2014-2016)
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Dinan cat-back stainless system with black ceramic tailpipes for BMW 3 Series Gran Turismo F34 335i
Unlock a richer soundtrack and crisper throttle feel with this Dinan T304 stainless cat-back for the 3 Series Gran Turismo F34 335i. Designed to improve gas flow and reduce restriction, it delivers a deeper, motorsport-inspired tone while remaining calm on the motorway. Helmholtz resonance tuning targets low rpm boom for a cabin-friendly drive with zero intrusive drone, so you get the best of both worlds: refined on cruise, assertive when you lean on the throttle.
Finished with dual 89 mm black ceramic-coated tailpipes, it looks as good as it sounds. The system is built from 16‑gauge T304 stainless for outstanding longevity and corrosion resistance, making it a superb upgrade for UK conditions.
Highlights
- Cat-back performance system for BMW 3 Series Gran Turismo F34 335i N55
- Helmholtz-tuned rear section for drone control and refined in-cabin acoustics
- 16‑gauge T304 stainless construction for durability and rust resistance
- Dual 89 mm black ceramic tailpipes for a stealthy OEM+ look
- Direct bolt-on to factory mounting points using OE hangers
- Sporty, deeper tone under load with comfortable cruising volume
What you will notice
Sharper response, smoother flow and a richer exhaust note without the low-speed resonance that spoils many aftermarket systems. Civilised for daily use, engaging for spirited B‑road drives, and visually perfect for the Gran Turismo rear valance.
Compatibility
- BMW 3 Series GT F34 335i, 2014 to 2016
- N55 3.0‑litre turbocharged petrol models
Why enthusiasts choose this system
We have installed this Dinan rear section on customer 335i GTs at MJ Modifications and it has consistently impressed for fit, finish and sound quality. Feedback from owners highlights the refined cruising manners, a tasteful cold start bark, and tailpipes that complement the F34 bodywork perfectly.
Installation and support
Professional fitting recommended. For supply and installation at MJ Modifications in Warwickshire, request a quote via info@mjmodifications.co.uk. We are happy to advise on compatibility and setup for road or fast-road builds.
Specification
- Material: 16‑gauge T304 stainless steel
- Tailpipes: twin 89 mm black ceramic-coated tips
- Design: Helmholtz resonance control to minimise cabin drone
- Fitment: bolt-on using factory hangers
Search-friendly terms
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