Josh, as per our conversation last night, the connector is directly next the the PSM pump which is directly under the brake master cylinder. Remove the plastic cover and you will see it. As I said, if driven at 7/10s, simply switching off the dash button will work. If you are an experienced racer who will drive at +9/10s and are skilled at rotating the car under braking, PSM will be a huge hindrance and you will cook your rear brakes. Anyone that tells you otherwise is simply driving the car at a more sedate pace. People will tell you the TT understeers but that is a misconception. Yes, the car will understeer if you try to carve it through a turn under throttle but If you know how to drive the car and load up the front end under braking, you will have no problem with turn in even on a stock suspension.

For a novice or someone learning the car, I'd just leave PSM on. If you are running HPR at 2:07 or slower leave PSM on. At a 2:00-2:07 pace I'd turn it off via the dash button. If you are an advanced level driver and can comfortably run HPR at 2:00 or less, I'd unplug PSM to fully take it out of the loop. Running a heavy car like a turbo at +5000' elevation on a +100F day will tax your brakes. The last thing you want is to have PSM pumping more heat into them. Have fun next week and be safe...

BTW, do not pull any fuses as that will cause a loss of ABS. An NO, you can not get a proper track alignment with a stock suspension. You will need part$ unfortunately. It's a slippery slope.

Coming back to the original topic, you won't know how much PSM will intervene until you try. It depends a lot on the track, driver, and car setup (e.g., different age front vs. rear tires). I use it maybe 50% of the time until I'm really comfortable, and have never had rear brake issues (I cook both front & rear!) with it on or off. If it's unobtrusive on or using the soft-off of the dash switch, I don't know why you'd throw away the safety margin. It's saved me once or twice.

Just curious, but is the 996 gt3 set for track or does it require part$ to make it capable. Also from a 996tt to a 996 gt3 is the stock track experience that much different?

The GT3 comes out of the box much more ready for track use. The car is lower, has adjustable sway bars and adjustable lower control arms.That said a couple of my buddies have 996 GT3s and I have no trouble keeping up with them in my 996TT with aftermarket adjustable sway bars.