Quote:
Originally Posted by andre12031948
With better 60' time, 12.7's. What h.p are you producing with the tune? I also see you are using a different exhaust. Is it better/different than Jason's. You also added headers? I'm still at LS or 370z 
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i was pulling off high 1.8x 60ft launches a few weeks ago.
270 rwhp on a mustang dyno (the tuner said 30 to 40hp above stock)
i swapped out the y-pipe with an aftermarket one
yes i added longtube headers
just flip a coin