roush_s550
Well-Known Member
- Thread starter
- #1
Hey guys! I'm upgrading to phase 2 with my Roush supercharger kit and am hoping to dip 9's on stock trim and Roush phase2 calibration!
Do you think its possible? I'm thinking 10.2-10.4 realistically. But have my fingers crossed for a 9.99!
Do you think its possible? I'm thinking 10.2-10.4 realistically. But have my fingers crossed for a 9.99!
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