Quote:
Originally Posted by JackB316
I'm running JB4 Map 5 with custom values on my 50i
The difference is night and day.
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Jack, not sure if it was you or someone else on this forum but did you ever install downpipes on your car? There have been some advertised downpipes but I haven't heard of anyone with one installed and their experience etc. I know RGSports is selling the Evolution Racewerks downpipe. I've also seen Supersprint and I think one other company have them but just no real life experience from a user here.
Thanks