| I agree to a certain extent; I have a qs2 and my mpg drops dirastically when going to the 110 or 135. the 90hp tune seems to be the G spot. Be careful when running that one on the highway too, I was provoked last weekend and I think my converter was having a hard time running like that. Cooled it out after that.
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2003 2500HD ECSB Duramax
38,000 Miles
AFE Stage 2 Intake
4" Turbo back strait piped silverline
Quad Stealth 2 (EFI live in due time)
AD100- Thx Todd MPF
Autometer Cobalts, Colormatched pillar
285/75/16 MTR's
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