Experience noticeable power gains, an awesome sound, and aggressive yet discrete styling. Manufactured since 1983 in the UK from premium T304L aircraft-grade stainless steel, chosen for its superior quality and anti-magnetic properties, every system ensures ultimate performance and a sharper throttle response through features like mandrel-bent, full-flow pipework.
Milltek’s performance stainless steel exhausts offer genuine power gains, an exhilarating sound, and a significant improvement in driveability and throttle response.
Key Features & Advantages:
- Premium Material: Manufactured from anti-magnetic, non-discoloring Type T304L aircraft-grade stainless steel for superior quality throughout all pipework and silencers.
- Optimised Flow: Increased bore size and mandrel-bent, full-flow pipework ensure ultimate performance without sacrificing mid-range torque.
- Proven Expertise: Over 40 years of continuous development, with all systems designed, developed, and manufactured in the UK since 1983.
- Weight Saving: Substantial weight reduction over original equipment.
- Comprehensive Range: Systems include cat-back, GPF/OPF-back, sports cats, de-cats, and more.
Need fitting guidance for your exhaust system, call +44 (0)1789 774444 or contact us directly.
Find your next BMW 1 Series M135i xDrive 5 Door (F70 OPF/GPF Equipped) Exhaust System
| SKU | Product Type | Tip Style | Additional Options | Pipe MM | Pipe Inches | Race System |
|---|---|---|---|---|---|---|
| MILLTEK1175-A | GPF/OPF Bypass | To fit to OE downpipe and Milltek OPF Back System Only | 76.2 | 3.0 | Y | |
| MILLTEK1175-B | GPF/OPF Bypass | To fit to OE downpipe and OE OPF Back System Only | 76.2 | 3.0 | Y | |
| MILLTEK1175-C | Particulate Filter-back | Quad 100mm GT100 | OPF/GPF Back System for OE Rear Diffuser with Brushed Titanium GT-100 Tips | 76.2 | 3.0 | X |
| MILLTEK1175-D | Particulate Filter-back | Quad 100mm GT100 | OPF/GPF Back System for OE Rear Diffuser with Burnt/Blue Titanium GT-100 Tips | 76.2 | 3.0 | X |
| MILLTEK1175-E | Particulate Filter-back | Quad 100mm GT100 | OPF/GPF Back System for OE Rear Diffuser with Cerakote Black GT-100 Tips | 76.2 | 3.0 | X |
| MILLTEK1175-F | Particulate Filter-back | Quad 100mm GT100 | OPF/GPF Back System for OE Rear Diffuser with Polished GT-100 Tips | 76.2 | 3.0 | X |
