RaptorN/Abuild
Full Access Member
- Joined
- Jul 23, 2015
- Posts
- 70
- Reaction score
- 31
I had some guys at Fastlane put my 2.9 whipple and livernois cam on my 13 raptor over a year ago. Tuned by livernois. This potential problem has been happening for a while. I'm not sure how the subscribe it. When I come to a stop the truck will downshift and right after the truck downshifts it will sound like the whipple will rev a little sounding just like a delayed downshift. Does anybody have any idea what this might be. Forgive me but I'm not exactly sure how to describe this.