flewbyu
Registered
need a little help since installing the street meagphone exhaust ,the air box mod the power commander pc3usb with the O27b track map,and the pair block off kit , everything else is stock my gas mileage has gone down from 39 to 34 to 33 now to 32.8 and seems to keep getting worse and seems to be down on power also any help would be appreciated thanks c.t