Kinetic1

I believe the frame/housing is the same for the TT and TTS.
The TT most likely has smaller compressor/exhaust wheels, which could be upgraded within the housing.

ESMotors has modded factory turbos and put larger wheels in for their upgrade package.

Angryinch

This could be true I am not sure TBH.

Regarding road course and tuned cars, I would really watch your logs and temps. The car isn't designed for all that extra power in regard to cooling & a constant beating around the track. I would run a moderate tune and not something that is on the edge of pulling timing. It would also be a good idea to mix half a tank of race gas in for extra protection.

enzom

You never know. Strange lights on the dash. A/C refuses to work. Key not recognized. Fuel pump goes bad. The hardware is pretty reliable - not many blown engines or trannys. Its mostly components and electronics. I love them, and have a 750S Spider (my 7th Mac). Nothing goes like them. Top end pull is something else -even stock. Love my 992 TTS, but the Mclaren is a rocket.

onfireTTS

I keep a Mac on my radar screen as well. Did all 7 that you owned have small things that required warranty service to repair ?

Kinetic1

I've had 3 MC's and only had issues with one. Really, the ownership issue for me was the lack of dealers in my area. Services and warranty issues required an inclosed transport.

onfireTTS

That’s the bad deal here. Mac dealership is 3 hours away. A lot to like about the Mac. Carbon fiber Monocoque, etc. Awesome ride, just needs a dealership nearby. I still might break over some day.

Pad Bender

TT has smaller compressor wheel...59 vs 61mm (pretty sure) and same exhaust wheel size as TTS

Only mechanical difference between the two.

https://rennlist.com/forums/992-turb...s-engines.html

Tuned...M-E says they get pretty much the same output at Stage 1/2...similar TQ and about 30 more HP from TTS.