Cat-Back Road Milltek BMW 1 Series F20-F21 M135i 3.0 Turbo 2012-2016 - no resonator with Road muffler - Twin GT90 Titanium Outle

Milltek Sport Exhaust System for BMW 1 Series F20-F21

Is the factory sound of your BMW 1 Series F20-F21 leaving you wanting more? This Milltek Sport stainless steel exhaust system is the one owners ask for most: more presence, a real sound signature and build quality that lasts.

Technical specifications

• Milltek part number: SSXBM1023
• Part type: Exhaust system
• Configuration: non-resonated (no resonator), no valves
• Details: No resonator with Road muffler, twin GT90 titanium tips
• Tube diameter: 76.2 mm (3 inch)
• Outlets: 2 GT90 outlets, 90 mm
• Tip finish: titanium finish
• Fitting information: Road version, no valve
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (United Kingdom)

Compatible vehicles

• BMW 1 Series F20-F21 M135i 3.0 Turbo 320 hp (2WD, 3 and 5 doors, 2012-2016)

Not sure whether it fits your vehicle? Contact us with your VIN (chassis number) before ordering.

Our most frequently asked questions

• Resonated or non-resonated? This version is non-resonated (no resonator): it is the most expressive, with more crackle on lift-off. The trade-off is that a slight drone may appear at certain engine speeds on long highway trips. If you do a lot of highway driving, compare it with the resonated version.
• No valves: the exhaust sounds at all times. On a vehicle fitted with factory valves, a valve delete module may be needed to avoid a warning light (see fitting information).
• Fitting: the system uses the original mounting points. A workshop typically fits it in one to two hours.

Why choose Milltek Sport?

Milltek Sport designs and manufactures its exhausts in England, with mandrel-bent tubing to preserve the inner diameter and a fit developed on the vehicle. The result: a clean installation with no modification required, and a tone tuned to stay pleasant for everyday driving.

Further reading

• Resonated or non-resonated cat-back: which one should you choose for your car?
• Valved exhaust system: how it works and should you keep the valves?