Milltek Particulate Filter-back OPF/GPF Back Exhaust System with GT-115 Titanium Trims for BMW M135i xDrive F40 5 Door 2019 on. If you are searching for a BMW M135i xDrive exhaust upgrade, a Milltek OPF back exhaust, a GPF back system, or titanium tip performance exhaust for the F40 M135i, this is the precision-engineered solution that delivers sound, quality and lasting performance.
This Milltek Sport particulate filter-back exhaust is designed, developed and hand-finished in the UK in aerospace grade type 304 non-magnetic stainless steel. The full system uses mandrel-bent pipework for constant-radius bends and optimised gas flow. Carefully enlarged bore diameters over stock help unlock performance response while maintaining drivability. Every Milltek exhaust undergoes a comprehensive acoustic development process to create a sporty, crisp exhaust note without NVH, drone or intrusive cabin resonance.
The GT-115 Titanium Trims complete the rear end with a premium motorsport-inspired finish. Titanium tailpipe trims are heat resistant and visually striking, giving your BMW M135i xDrive a sharper, more purposeful look to match the enhanced sound.
Why choose this Milltek exhaust for your BMW M135i xDrive F40
- UK-made Milltek Sport OPF back exhaust system for BMW M135i xDrive F40 5 Door 2019 on
- Particulate filter-back design retains the factory OPF GPF while improving exhaust flow and tone
- Type 304 stainless steel throughout pipework, silencers and associated hardware
- Mandrel-bent construction for smooth, consistent flow and performance response
- Acoustically developed to be sporty and crisp without drone or cabin resonance
- GT-115 Titanium Trims for a premium, heat-resistant tailpipe finish
- Durable, corrosion resistant materials for long-term reliability
Fitment
Compatible with BMW M135i xDrive 5 Door F40 models equipped with OPF GPF, 2019 on. This is an OPF GPF back system that keeps the factory particulate filter in place while upgrading the rear section for improved sound and aesthetics.
What our customers say
We have fitted this Milltek OPF back exhaust to multiple BMW M135i xDrive F40 cars and customer feedback has been consistently positive. Owners love the refined, drone-free soundtrack, the high quality stainless steel construction and the premium titanium GT-115 tailpipes. It is a true performance exhaust upgrade for daily use and spirited driving alike.
Ideal search terms
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Professional fitting
For expert installation, choose Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com. Our experienced team has hands-on experience with this exact BMW M135i xDrive F40 OPF GPF back exhaust and can ensure a clean, precise fit.
Transform the look and sound of your BMW M135i xDrive F40 with the Milltek particulate filter-back exhaust featuring GT-115 Titanium Trims. Order from Nforcd today and enjoy premium UK-built quality, enhanced tone without drone and a standout titanium tailpipe finish.