My car is driving like its stock all of a sudden as if I have no chip in it anymore. Still have the stock by pass valve on it and the car has 65K miles on it.. Do you think there is a leak their and once i replace it it should drive well again????

 

I would replace the DV. If that doesnt work, start replacing vacuum hoses. If you fix it, then the power will restore itself.

 

alright cool...