Milltek Cat-Back Exhaust for BMW F32 428i Coupe N20 - 435i-Style Dual-Outlet, Non-Resonated, Polished Tips - SSXBM1005
Upgrade your BMW F32 428i Coupe with the Milltek cat-back exhaust system SSXBM1005. This 435i-style dual-outlet conversion delivers a louder, more aggressive non-resonated sound with polished tips, while retaining the factory catalytic converter. Perfect for enthusiasts seeking a premium BMW 428i exhaust upgrade that enhances tone, flow and road presence.
Every Milltek system is designed, developed and hand-finished in the UK by time-served craftsmen. Constructed from aerospace grade type 304 non-magnetic stainless steel, it resists discolouration and corrosion and is used throughout the pipework, silencers and hardware for outstanding durability. Mandrel bending ensures constant-radius bends for optimised gas flow, with carefully enlarged bore diameters over stock to support performance without sacrificing mid-range torque. Milltek’s comprehensive acoustic development delivers a crisp, sporty note without the usual NVH, drone or cabin resonance.
Why choose this Milltek BMW 428i cat-back
- 435i-style dual-outlet rear conversion for a factory-plus look
- Non-resonated for a louder, more aggressive exhaust note
- Polished stainless steel tips for a premium finish
- T304 stainless steel throughout for long-term reliability
- Mandrel-bent tubing for smooth, high-flow performance
- Acoustically engineered for a sporty tone without harsh drone
- Cat-back layout retains the OEM catalytic converter
Fitment and requirements
- Vehicle: BMW 4 Series F32 428i Coupe
- Engine: N20 only
- Transmission: Manual
- Tow bar: Not compatible with vehicles equipped with a tow bar
- Model years: 2014, 2015, 2016, 2017, 2018, 2019, 2020
- Important: Requires the 435i M Sport rear valance from your BMW dealer to complete the dual-exit conversion
- Part number: SSXBM1005
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Our experience and customer feedback
We have fitted and run this Milltek system on customer cars and feedback has been superb. Owners love the sharper throttle feel that comes from improved gas flow and the deeper, more engaging soundtrack on the N20 engine. The dual-outlet 435i look with polished tips transforms the rear of the F32 while maintaining an OEM-plus finish.
Professional fitting
For a seamless installation and perfect alignment on your BMW F32 428i, we recommend professional fitting at Nforcd in Warwickshire. To request a fitting quote or to check compatibility, email Sales@nforcd.com.
What you get
- Milltek cat-back exhaust system - 435i-style dual outlet, non-resonated, polished tips
- Premium T304 stainless steel construction with mandrel-bent pipework
- Engineered sound that is louder than stock without unwanted drone
- Direct cat-back upgrade that complements the N20 engine
If you are searching for a BMW 428i exhaust upgrade that combines UK-built quality, a proper 435i dual-exit aesthetic and a purposeful, non-resonated tone, the Milltek SSXBM1005 cat-back is the standout choice for the F32 428i Coupe N20 manual without tow bar. Order with confidence and transform the look and sound of your BMW.