Porsche Boxster 718 GTS 4.0 (OPF/GPF Equipped Cars Only - Post Feb 2020 Build PDK Cars Only) GPF/OPF Bypass PDK
Porsche Boxster 718 GTS 4.0 (OPF/GPF Equipped Cars Only - Post Feb 2020 Build PDK Cars Only) GPF/OPF Bypass PDK
For motorsport/off-road use only.
Description
This Milltek Sport GPF/OPF bypass removes the restrictive particulate filter.
Key Features
- Constructed from aircraft-grade 304 stainless steel
- Mandrel-bent pipework for optimal flow
- Large-bore 2.37" (60.30mm) tubing
What's Included*
- 1x LH GPF/OPF Bypass
- 1x RH GPF/OPF Bypass
- 1x LH Valve Assembly
- 1x LH Mounting Bracket - PDK Cars Only
- 1x RH Mounting Bracket - PDK Cars Only
- 1x RH Valve Assembly
- 1x Rear Silencer Assembly
- 2x Outlet Pipes
*Exact components may vary depending on variant selection (e.g., tip style, cat type, sound level).
Vehicle Fitment
- Boxster 718 GTS 4.0 (OPF/GPF Equipped Cars Only - Post Feb 2020 Build PDK Cars Only)
- Cayman 718 Gt4 4.0 (OPF/GPF Equipped Cars Only - Post Feb 2020 Build PDK Cars Only)
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.

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.

