BMW 1 Series 128Ti 5 Door (F40 OPF/GPF Equipped) Accessories
BMW 1 Series 128Ti 5 Door (F40 OPF/GPF Equipped) Accessories
Some configurations (such as de-cat options) are for motorsport/off-road use only.
Description
This Maxton rear diffuser is designed for the Milltek Sport quad-outlet exhaust on the BMW 1 Series 128Ti (F40).
What's Included
- 1x Maxton x Milltek M135i F40 Gloss Diffuser (Quad Outlet)
Vehicle Fitment
- 1 Series 128Ti 5 Door (F40 OPF/GPF Equipped)
- 1 Series M135I Xdrive 5 Door (F40 OPF/GPF Equipped)
Delivery, returns & warranty
Delivery, returns & warranty
Free UK Mainland Delivery
Free delivery to UK mainland addresses on orders over £50. Orders under £50 are charged at £5.99.
Milltek Sport Warranty
Lifetime guarantee on cat-back, GPF-back and rear silencer systems. Downpipes, hi-flow catalysts and valved parts: 2 years / 80,000 km. Electronics: 2 years. Your statutory rights are not affected.
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Milltek Engineering
T304L Stainless Steel
Aerospace-grade, non-magnetic stainless steel that resists degradation and discolouration — built to last almost indefinitely.
Precision Engineered
CNC mandrel bent for smooth internal bore and optimum gas flow. 3D laser scanned for exact OEM fitment every time.
Motorsport Heritage
Developed through decades of competition in BTCC, VLN, Nürburgring 24hr and Time Attack — race-proven engineering in every system.
Precision Craftsmanship
Performance Exhaust Systems Since 1983
Milltek Sport was founded by a true car enthusiast and has grown to become one of the leading manufacturers of performance exhaust systems. In-house state-of-the-art equipment and one of the most experienced engineering teams in the industry allows Milltek to continue delivering innovative designs with uncompromising quality.
