Got my car back today, it had 200 cell 3 inch high flow cats put on it, an orssom OTR and a 95 tune.
The baseline run was actually 169rwkw. The gains I thought I would get were not hit.
From all my reading and looking at what shops expect for gains I was forecasting around 30-35rwkw gains.
I ended up with 22rwkw gains so that upped it to 191rwkw.
From my calculations based upon standard engine output I believe the at engine gain to be 27kw so that should in theory take the engine power to 237kw or 318hp.
Torque, with some of my basic calculations has increased at the engine from 350nm to 386nm. Torque at the rear wheels I do not know as the readings is one of those crazy ones that reads as about 200nm more than standard, don't know how that is converted.
Am I disappointed that the gains weren't a bit more? Yes.
Would I do it again? Definitely. I still gained almost 40 engine hp and 30 rear wheel hp, and almost 40nm of torque.
The throttle response is superb, it holds the gears better and accelerates more with less throttle input.
Certainly glad I got it done.