KBS911

Trading my 991 13 Carrera S for a new GTS. Have a BBI roll bar that I want to install from S to GTS. I know the car is 1.7 inches wider in the rear, but are the shock tower mounts the same dimensions (width)? Are roll bars interchangeable from an S to a GTS/Carrera 4?

008

No answer on this? I'm not sure the interior is any different. Ask the folks who made it, if your bar also fits the GT3 and you'll have your answer I suspect.

SDaddy

Exactly, I was going to suggest that if the manufacturer indicates the same bar fits a Carrera 4, you're good.

KBS911

Yes, asked the manufacturer and they said it would/should work. But I sensed a hint of reluctance for an absolute commitment. Talked to my dealer/techs. They will measure a C4 when one comes in for service. Consensus seems to be that despite the 44mm increased body width,36mm wider track, that it wouldn't make sense production wise to change the car from C2 to C4. My concern was the spacing between the rear shock towers where the bar would mount. Car is on order so I have time to investigate.