Milltek Rear Silencer Bypass Non-Valved, Louder, with GT-90 Cerakote Black Trims for BMW 125i F20 and F21 B48 2016 onwards
Transform the sound and presence of your BMW 125i with the Milltek Rear Silencer Bypass Non-Valved. This Milltek Sport performance exhaust rear section delivers a louder, deeper, more aggressive tone and a cleaner look with GT-90 Cerakote Black trims, tailored to suit the M135i rear valance. Perfect for BMW 125i F20 and F21 hatchbacks, 3 door and 5 door, B48 engine only, 2016 onwards.
Why choose this Milltek exhaust upgrade for your BMW 125i F20 and F21
- Rear silencer bypass for a true backbox delete sound on the BMW 125i
- Non-valved design for consistent, louder exhaust note at all times
- GT-90 Cerakote Black tips for a stealth, motorsport-inspired finish
- Designed to work with the M135i rear valance for the perfect OEM plus fit
- Made in the UK from aerospace grade type 304 stainless steel
- Mandrel bent pipework for optimised gas flow and performance potential
- Sporty, crisp tone developed by Milltek without harsh NVH, drone or cabin resonance
Premium materials and build quality
Every Milltek system is designed, developed and hand finished in the UK using type 304, non magnetic stainless steel for outstanding corrosion resistance and long term durability. Mandrel bending maintains a constant diameter through every bend, supporting optimised exhaust flow. Milltek’s acoustic development process delivers a sharper, sportier note without the usual compromises.
Fitment and compatibility
- Vehicle: BMW 125i Hatchback
- Chassis: F20 and F21, 3 door and 5 door
- Engine: B48 only
- Model years: 2016 onwards
- Configuration: Rear silencer bypass, non valved, louder
- Tips: GT-90 Cerakote Black trims
- Valance note: Requires M135i style rear valance
Real world results you can hear
We have installed and used this Milltek Rear Silencer Bypass on BMW 125i F20 and F21 B48 cars and the feedback is consistently positive. Expect a louder, deeper exhaust note with enhanced character on start up, part throttle and full throttle. Customers choose this rear section for its quality, fit, finish and the unmistakable Milltek sound.
Fitting at Nforcd
Want it supplied and fitted by specialists We offer professional installation at Nforcd in Warwickshire. Contact us for a fitting quote at Sales@nforcd.com. We are happy to advise on valance options and compatibility for your BMW 125i F20 or F21 B48.
Key search terms
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