The kit im running in standard for runs 7 pound boost, we changed the pulley and are now running 10 pound boost which gave the car a few more ponies, I can compare my car with a standard xrturbo and one with a stage one kit and I can still say the BM feels a lot stronger. I'm not here to prove who car is stronger I'm just sharing my pride and joy fellow car enthusiasts. Drive line shunt and brake shudder whats that!!!!, But I did get a new transmission installed with 6k on the clock and and the driver seat leather repaired. It's funny that not even 100k can get you a painted engine bay