Milltek Rear Silencer with GT-80 Polished Trims for BMW 125i F20 F21 B48 2016 onwards is the ultimate BMW 1 Series 125i exhaust upgrade for drivers who want a premium UK-made performance exhaust, a deeper, sportier sound and stunning GT-80 polished tailpipes that suit the OE twin left valance perfectly.
Crafted in the UK by Milltek’s time-served specialists, this BMW 125i F20 F21 rear silencer is produced from aerospace-grade type 304 non-magnetic stainless steel for exceptional corrosion resistance and long-term durability. The system uses mandrel-bent pipework with carefully enlarged bore diameters to optimise gas flow and performance while preserving crucial mid-range torque. Every Milltek exhaust undergoes rigorous acoustic development to deliver a crisp, sporty exhaust note without NVH, drone or unwanted cabin resonance.
Why choose this Milltek BMW 125i exhaust upgrade
- Premium UK-made performance exhaust for BMW 125i F20 and F21 B48
- GT-80 polished trims for a factory-plus look with the OE twin left valance
- Aerospace-grade type 304 stainless steel for long-lasting durability
- Mandrel-bent tubing and enlarged bore for optimised gas flow
- Sporty, refined exhaust tone without drone or cabin resonance
- Designed to integrate with the original system for a clean, precise fit
Fitment and compatibility
- Vehicle: BMW 125i 3 Door and 5 Door Hatch
- Chassis: F20 and F21
- Engine: B48 only
- Model years: 2016 onwards
- Valance: OE twin left valance
- Tips: Milltek GT-80 polished trims
Performance exhaust sound you will love
This Milltek rear silencer brings your BMW 125i to life with a deeper, sharper exhaust note that feels more engaging on the road while remaining refined on the motorway. The tone is sporty and crisp without drone, thanks to Milltek’s comprehensive acoustic tuning.
Built to go the distance
Using high-grade type 304 stainless steel throughout the pipework, silencers and associated hardware, this Milltek rear box is engineered to resist discolouration and corrosion. The result is a durable, high-quality BMW 125i back box that looks as good as it sounds.
Real-world results and happy customers
We supply and install Milltek systems for BMW 125i F20 and F21 owners who want a premium sports exhaust upgrade with brilliant fitment and sound. Feedback from our customers has been consistently positive, praising the build quality, finish and refined tone without drone. We have used and fitted these systems ourselves and continue to recommend them as a top-tier BMW 1 Series 125i exhaust choice.
Installation and support
Professional fitting is recommended. For expert installation, choose Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Key search terms
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Order your Milltek Rear Silencer with GT-80 Polished Trims for the BMW 125i F20 and F21 B48 today and transform the look and sound of your 1 Series with a high-quality, UK-engineered performance exhaust.