u/Fit_Injury_1505

My Carmine Red 981 Cayman GTS currently has the 20” 911 Turbo Design wheels in silver, but I’m considering changing them to the OEM black GTS wheels.

I like the Turbo Design wheels because they give the car some contrast and look a bit more special, but I also really like how the black GTS wheels match the rest of the black accents and give the car a more aggressive OEM look.

If it were yours, would you keep the Turbo Design wheels or switch to the GTS wheels?

Photos for comparison.

Hey everyone,

I recently installed catless headers on my 2015 Porsche Cayman GTS 981. The car sounds absolutely amazing now, but I’m having an issue after the install.

The car is running very rough, almost like it’s misfiring, especially at low RPM / light throttle. Strangely, I’m not getting a CEL at the moment.

For context, I installed O2 sensor spacers along with the headers to try and avoid a CEL.
Has anyone experienced this after installing catless headers on a 981 Cayman/Boxster?

A few things I’m wondering:

Could the O2 spacers be causing incorrect readings and making the car run rough?

Should I remove the spacers and let the car read normally?
Is a tune required after going catless?

Could this be an exhaust leak near the headers/O2 sensors?

The car sounded and drove fine before the headers, so I’m trying to figure out whether this is most likely related to the O2 spacers, the catless setup needing a tune, or something from the install.

Any advice from people who have done headers on a 981 would be appreciated. Thanks!