718 GT4 · Header
Equal-length header with high-flow cats, T304 stainless with heat-shielded catalytic sections. Direct replacement on the 4.0L flat-six.
Porsche 718 · Cayman / GT4 / GT4 RS
718 flat-four exhaust program
A complete program for the 718 platform: headers and cat pipes for GT4 and GT4 RS, valved titanium rear sections, and a GT4-style upgrade for the Cayman 987.2 — every system built on its own dedicated jig.
Line-up
Five systems across the 718 range.
718 GT4 · Titanium rear
GR5 titanium rear section, 63 mm / 2.5" piping, valved, with black-finished quad tips. Sound on demand, weight off the tail.
Cayman 987.2 · GT4-style rear
Bring 987.2 Cayman styling and sound in line with the GT4: T304 stainless rear section with GT4-look dual centre tips, direct bolt-on.
718 GT4 RS · Cat pipes
High-flow cat pipes (head section) for the GT4 RS 4.0L — heat-tinted titanium construction, machined flanges, track-friendly flow.
718 GT4 RS · Titanium rear
Valved GR5 titanium rear silencer section for the GT4 RS, paired with the cat pipes above for a complete free-flowing system.
Specification
718 program at a glance.
| System | Material | Pipe | Valve | Finish |
|---|---|---|---|---|
| 718 GT4 · Header | T304 stainless | Equal length | — | Heat-shielded cats |
| 718 GT4 · Titanium rear | GR5 titanium | 63 mm / 2.5" | Valved | Burnt Ti, black tips |
| Cayman 987.2 · GT4-style rear | T304 stainless | Per chassis | Optional | Polished, black tips |
| 718 GT4 RS · Cat pipes | GR5 titanium | Per chassis | — | Heat-tinted Ti |
| 718 GT4 RS · Titanium rear | GR5 titanium | Per chassis | Valved | Burnt Ti |
Confirm chassis, year and trim at enquiry — 981/982 and 987 platforms quoted separately.
The systems
Built for the 718, photographed before shipping.
Also in production
Other fitments
911 · 992 / 991
Corvette C8
Enquiry
Get 718 pricing for your market.
Tell us the chassis — GT4, GT4 RS or Cayman — and the system you need. We'll confirm fitment and quote, usually within one business day.