Extreme race vs x

Bushwood_6.0

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Sep 16, 2013
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St Mary's county, Maryland
I recently got tunes from you about a month or so ago. Mike Graves from Hollyrock ordered them from you. I have a 6.0 with an s475 and 285/150s hybrids. I've been in the street tune for awhile and am extremely happy went 7.72 at rudys in it. My question is I have extreme race and extreme X also. We ordered one for nitrous. My question Is the extreme race tune for fuel only and the X for spray? I don't plan to spray anytime soon. Wondering which would be better to run fuel only.

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