Mikeextrafast
Well-Known Member
- Joined
- Nov 5, 2016
- Threads
- 19
- Messages
- 63
- Reaction score
- 15
- Location
- North Carolina
- Vehicle(s)
- 2016 GT premium performance package
- Thread starter
- #1
Sponsored
Simple math.How much rpm gain would I see going from 3:15 to 3:55 ?