Snakebyte69
Member
- Thread starter
- #1
Need help. 2016 roush tvs with mbrp 3 race exhaust roush tuned. Car made 580rwhp on mustang dyno but is only trapping 121mph. The best time so far is a 11.8 @ 121. I feel like I am losing boost in second gear when I power shift. Also the car has 373 gears which isn't great since I have to shift into 5th. What now?
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