BigCatDan
Well-Known Member
4.7 FACTORY TIRES PP AOTO TRANNY MAPERFORMANCE PHASE 1.5 AND HAVE BACKED IT UP WITH SEVERAL 4.8.
Only 4.7? MAP 1.5 system numbers have more wtq than a GT and nearly the same whp as a gt, but the Eco is about 200lbs lighter. GT's are getting 4.5 0-60. What am I missing?? How do we get the eco under 4.5?
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