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 Porsche Boxster 718 GTS 4.0 (OPF/GPF Equipped Cars Only – Post Feb 2020 build PDK Cars only) Exhaust System
| SKU | Product Type | Tip Style | Additional Options | Notes | Pipe MM | Pipe Inches | Race System |
|---|---|---|---|---|---|---|---|
| MILLTEK1407-A | Cat-back | 115mm GT115 | With GPF/OPF Bypass and Brushed Titanium GT-115 Trims | Requires Stage 2 ECU Remap | 60.3 | 2.37 | Y |
| MILLTEK1407-B | Cat-back | 115mm GT115 | With GPF/OPF Bypass and Burnt/Blue Titanium GT-115 Trims | Requires Stage 2 ECU Remap | 60.3 | 2.37 | Y |
| MILLTEK1407-C | Cat-back | 115mm JET-115 | With GPF/OPF Bypass and Carbon JET-115 Trims | Requires Stage 2 ECU Remap | 60.3 | 2.37 | Y |
| MILLTEK1407-D | Cat-back | 115mm GT115 | With GPF/OPF Bypass and Cerakote Black GT-115 Trims | Requires Stage 2 ECU Remap | 60.3 | 2.37 | Y |
| MILLTEK1407-E | Cat-back | 115mm GT115 | With GPF/OPF Bypass and Polished GT-115 Trims | Requires Stage 2 ECU Remap | 60.3 | 2.37 | Y |
| MILLTEK1407-F | GPF/OPF Bypass | Fits with OE and Milltek Sport OPF Back Systems | Requires Stage 2 ECU Remap | 70.0 | 2.76 | Y | |
| MILLTEK1407-G | Particulate Filter-back | 115mm GT115 | With Brushed Titanium GT-115 Trims | 60.3 | 2.37 | X | |
| MILLTEK1407-H | Particulate Filter-back | 115mm GT115 | With Burnt/Blue Titanium GT-115 Trims | 60.3 | 2.37 | X | |
| MILLTEK1407-I | Particulate Filter-back | 115mm JET-115 | With Carbon JET-115 Trims | 60.3 | 2.37 | X | |
| MILLTEK1407-J | Particulate Filter-back | 115mm GT115 | With Cerakote Black GT-115 Trims | 60.3 | 2.37 | X | |
| MILLTEK1407-K | Particulate Filter-back | 115mm GT115 | With Polished GT-115 Trims | 60.3 | 2.37 | X |
