Overview
The B58 in the M240i and M140i is held back by two factory resonators that smother its note. This Milltek 80mm mid-pipe replaces both with straight mandrel-bent T304L stainless, sharpening the six-cylinder sound and freeing up flow while keeping the optional BMW M Performance rear silencer in place.
Details
Milltek 80mm Resonator Bypass for the BMW M240i and M140i (F2X), Fits M Performance Rear Silencer
Key Features
- Double Resonator Delete: removes both factory resonators for a sharper, louder note.
- Improved Flow: 3.15in (80.00mm) mandrel-bent T304L stainless front pipe and axle pipe.
- Fits the M Performance Rear Silencer: supplied with the correct adapter.
- Installation: the OE system must be cut to fit.
Technical Specifications
- Pipe Diameter: 3.15in (80.00mm)
- Material: T304L Stainless Steel
- System: Resonator Bypass Mid-Pipe
- Fits: optional BMW M Performance rear silencer
- Fitting Time: 2.00 to 3.00 hours, including removing the OE system
Compatibility
- 2015 to 2020 BMW M240i Coupe (F22 LCI), non xDrive
- 2015 to 2020 BMW M140i 3 and 5 Door (F20/F21 LCI)
Why Choose Milltek?
Engineered for the Emotion.
Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Nurburgring tested.