Milltek Cat-back Exhaust - Road - Ceramic Black Tips - BMW M135i F21/F20 3-door & 5-door 2012 onwards
Upgrade your BMW M135i with the Milltek Sport cat-back exhaust system. This Road (resonated) cat-back with Ceramic Black tips is the perfect performance exhaust upgrade for the M135i F21 3-door and F20 5-door from 2012 onwards. Expect a deeper, sportier sound with zero drone, precision UK-made quality, and improved throttle response. We have fitted and run this system on our own and customer M135i cars and the feedback is consistently excellent for sound, fitment and finish.
Why choose Milltek for your BMW M135i F20/F21
- UK engineered and hand-finished in aerospace grade type 304, non-magnetic stainless steel for long-term durability
- Mandrel-bent pipework with carefully enlarged bore for optimised gas flow and performance without sacrificing mid-range torque
- Road resonated system delivers a refined, sporty tone without NVH, drone or cabin resonance
- Ceramic Black tips for a stealth, OEM-plus look that suits the M135i’s styling
- Designed to bolt up to the factory system, retaining the catalyst for emissions-friendly performance
- Engineered for daily driving comfort and weekend performance, ideal for stock or remapped cars
Fitment and compatibility
- BMW M135i 3-door F21 and 5-door F20, 2012 onwards.
- Direct replacement cat-back exhaust for the M135i N55 platform.
- Compatible with standard factory mounting points and hardware.
Sound and performance
This Milltek cat-back exhaust for BMW M135i F20/F21 adds a deeper, crisper exhaust note with enhanced turbo spool and overrun character while avoiding harshness inside the cabin. Acoustic development ensures a sporty tone without drone at motorway speeds. The enlarged mandrel-bent pipework improves flow for sharper throttle response and performance you can feel every day.
Materials and build quality
Constructed entirely from premium type 304 stainless steel for corrosion resistance and longevity, with precise mandrel bends and expertly finished welds. Milltek’s UK manufacturing and acoustic tuning deliver a consistent, high-quality fit and finish for your M135i cat-back system.
Installation and fitting
Looking for professional fitting for your BMW M135i exhaust upgrade? Nforcd offers installation in Warwickshire. Request a quote at Sales@nforcd.com.
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Order your Milltek Cat-back - Road - Ceramic Black Tips for the BMW M135i F21/F20 today and transform the sound and feel of your car with a premium UK-made performance exhaust.