Milltek Cat-back Exhaust for BMW F32 428i Coupe N20 – 435i-style Dual Outlet – Resonated – Polished Tips – SSXBM1012
Transform your BMW 4 Series with the Milltek Sport cat-back exhaust system for the F32 428i Coupe N20. This 435i-style dual-outlet, resonated cat-back with polished tips delivers an OEM-plus look and a refined, sporty exhaust note. Made in the UK in aerospace grade type 304 non-magnetic stainless steel, the Milltek SSXBM1012 is a premium performance exhaust upgrade for the BMW 428i that enhances sound quality and gas flow while maintaining day-to-day comfort.
Every Milltek system is designed, developed and hand-finished in the UK by time-served craftsmen. The high quality T304 stainless steel construction is highly resistant to discolouration and corrosion, with mandrel-bent pipework for constant radius bends and optimised gas flow. Bore sizes are carefully enlarged over stock to support performance without sacrificing mid-range torque. Milltek’s comprehensive acoustic development ensures a crisp, sporty tone with excellent NVH control, so you get the sound you want without unwanted drone or cabin resonance.
Key features
- Milltek Sport cat-back exhaust for BMW 428i F32 N20
- 435i-style dual-outlet conversion with polished tailpipe tips
- Resonated system for a quieter, refined sound on the motorway and around town
- Premium type 304 stainless steel throughout for long-term durability
- Mandrel-bent pipework for optimised gas flow and response
- Sporty, crisp exhaust note with excellent NVH control and no intrusive drone
- Hand-finished in the UK by Milltek Sport
- Part number: SSXBM1012
Vehicle compatibility
- BMW 4 Series F32 428i Coupe
- Model years 2014 to 2020
- N20 engine only
- Automatic transmission only
- Without tow bar
- Requires BMW 435i M Sport rear valance from your BMW dealer for the dual-outlet tips
Why choose this Milltek cat-back for your BMW 428i
This BMW 428i cat-back exhaust is the ideal upgrade if you want the 435i twin-exit look with a refined, quieter resonated tone. It retains daily usability while adding a deeper, more engaging note under load. The 435i-style dual outlet fills the M Sport rear valance perfectly for a clean OEM finish. If you are searching for BMW 428i exhaust upgrade, BMW F32 428i cat back, Milltek 428i resonated exhaust, 4 Series dual exit exhaust, or stainless steel performance exhaust for BMW 428i, this system is the solution that combines quality, fitment and sound.
Real-world feedback
We have supplied and used Milltek systems extensively on BMW platforms and customer feedback has been consistently positive. 428i owners love the OEM-plus appearance, the polished tips, the refined resonated sound, and the high quality UK-made construction that Milltek Sport is known for.
Installation and support
Professional fitting is available at Nforcd in Warwickshire. Contact Sales@nforcd.com to request a fitting quote or to discuss your BMW 428i F32 exhaust upgrade. We are happy to advise on the required 435i M Sport rear valance from your BMW dealer and to ensure smooth installation.
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Important fitment note
This dual-outlet system requires the 435i M Sport rear valance from your BMW dealer. Please ensure your car is an F32 428i Coupe with the N20 engine, automatic transmission and without a tow bar before ordering.