Milltek GPF/OPF Bypass for Porsche Boxster 718 GTS & Spyder 4.0 (OPF/GPF Equipped Cars Only - Post Feb 2020 build Manual Cars only) (2020 onwards) – Filter Delete, Motorsport Use
This is Milltek's GPF/OPF bypass pipe for the Porsche Cayman 718 GT4 4.0 (OPF/GPF Equipped Cars Only - Pre Feb 2020 build only). It replaces the section of pipe housing the factory petrol particulate filter with a straight-through pipe, clearing the last major restriction left in a modern turbocharged petrol exhaust once a de-cat and remap are already in place. It's offered in versions to suit the factory or a Milltek system and 5 tailpipe finishes, so you can pick the setup that suits how the car's used.
It's aimed at owners already running a de-cat and a supporting remap who want to clear the final restriction in the system, not a bolt-on for a car that needs to stay road legal.
Because it removes the particulate filter, it's intended for off-road and competition use. A car with the GPF/OPF removed will fail an MOT emissions test and isn't legal to use on UK roads.
Specifications
-
System Type: GPF/OPF Bypass
-
EC Approved: No
-
Race System: Yes
Key Features
- Made from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration
- Mandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow
- Straight-through pipe in place of the factory petrol particulate filter (off-road and competition use only)
- Choice of 5 tailpipe finishes: GT-115 Brushed Titanium, GT-115 Burnt Titanium, JET-115 Carbon Fibre, GT-115 Cerakote Black, GT-115 Polished
- Designed, developed and manufactured in the UK by Milltek Sport
Fitment
- Porsche Boxster 718 GTS & Spyder 4.0 (OPF/GPF Equipped Cars Only - Post Feb 2020 build Manual Cars only) (2020 onwards)
- Porsche Boxster 718 GTS & Spyder 4.0 (OPF/GPF Equipped Cars Only - Post Feb 2020 build PDK Cars only) (2020 onwards)
- Porsche Boxster 718 GTS & Spyder 4.0 (OPF/GPF Equipped Cars Only - Pre Feb 2020 build only) (2019-2020)
- Porsche Cayman 718 GT4 4.0 (OPF/GPF Equipped Cars Only - Post Feb 2020 build Manual Cars only) (2020 onwards)
- Porsche Cayman 718 GT4 4.0 (OPF/GPF Equipped Cars Only - Post Feb 2020 build PDK Cars only) (2020 onwards)
- Porsche Cayman 718 GT4 4.0 (OPF/GPF Equipped Cars Only - Pre Feb 2020 build only) (2020 onwards)
Not every version fits every car in this list. Check the fitment shown for the option you select.
Not suitable for: any model, engine or body style not listed above. Check your car before ordering.
Installation
The fitting time varies by version; see the specification table for the option you choose. Some versions: Fits with OE and Milltek Sport OPF Back Systems - Requires Stage 2 ECU Remap. Some versions: With Burnt Titanium GT-115 Trims - Requires Stage 2 ECU Software. Some versions: With Carbon Jet-115 Trims - Requires Stage 2 ECU Software. Some versions: With Cerakote Black GT-115 Trims - Requires Stage 2 ECU Software. This work involves removing parts close to the turbo and engine, so we recommend fitting by a specialist with a ramp and suitable software support.
Upgrade Further
Also available from Milltek for this car: Milltek Filter-back Exhaust Porsche Boxster 718 GTS & Spyder 4.0 (OPF/GPF Equipped Cars Only - Post Feb 2020 build Manual Cars only) 20+ SSXPO159.
Which tailpipe finishes are available?
You can choose from: GT-115 Brushed Titanium, GT-115 Burnt Titanium, JET-115 Carbon Fibre, GT-115 Cerakote Black, GT-115 Polished. The finish is cosmetic and does not change the sound.
Will it fit the Porsche Boxster 718 GTS & Spyder 4.0 (OPF/GPF Equipped Cars Only - Post Feb 2020 build PDK Cars only)?
Yes. Milltek lists this part for the Porsche Boxster 718 GTS & Spyder 4.0 (OPF/GPF Equipped Cars Only - Post Feb 2020 build PDK Cars only) as well as the other models in the fitment list above.
Is it road legal?
No. Removing the particulate filter means the car will fail an MOT emissions test, so it is for off-road and competition use only.
Do I need a remap?
Yes. Milltek notes: "With Burnt Titanium GT-115 Trims - Requires Stage 2 ECU Software". Without suitable software the engine management is likely to log faults.
Can I use it with my standard exhaust?
It depends on the version. Some are made for the factory (OE) system and others for the Milltek cat-back, so check the notes for the option you choose.
How long does it take to fit?
It depends on the version. Milltek's fitting time for each option is shown in its specification table.
What is it made from?
T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.
Is there a warranty?
Yes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.
