Does any one know of how much differnce I will lose in running a 2 1/4" instead of 2 1/2" h pipe. I bought my car with a off road pipe, and just picked up a nice used catted h pipe for emissions. Thing is I didnt know it was 2 1/4" until I recieved it.
Anyone have dyno numbers of different exhaust systems?
Anyone have dyno numbers of different exhaust systems?