Originally Posted by GTM_Challenge
I havent used the JB at all with our downpipe so i cant say what effect it has or not. I dont know if it effects any of the learning on the ECU? You do any baseline of your car before the downpipe? Thats the best way to tell as you are comparing the same care. comparing dyno numbers even from what car to the next will have some difference even. The % in gains is what is actually measurable.
Feel free to PM or email me so i can help you best as possible.
If you guys are looking for dyno numbers around a DP with stock exhaust, w/JB I'm going with that set up within the next couple of months and have access to a machine... PM me if I can be of help.