hi guys ,

I have my M6 I just did some mods on the car. I have eisenmann exhaust system, evosport headers, evosport pulleys, stage evosport ECU, and custom X-pip. I think i lost power and torque after installing the x-pip. maybe i just lost torque. the car has 457 on the wheel. do you think i lost power. am saying i lost power because when i first got the car after the headers when I shift from gear to another I used to feel a strong push. it used to heart my back. but now I think its different its not strong as it used to be. its SMG.

please let me know if you know anything about it

 

theres no way to tell from the information you have given....the best way to find out is take the x-pipe off put the stock one back on dyno then re-install the x-pipe and dyno again