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Awd180 · 08-11-2013, 05:10 AM

With any performance upgrade the only loss in mpg is how you drive. Just like adding lrrt/lwr or a lw crank you're decreasing resistance of the output.

08-11-2013, 05:10 AM	#80 (permalink)
Awd180 EcoModding Lurker Join Date: Apr 2013 Location: Nj Posts: 48 wrx - '02 subaru impreza wrx wagon 90 day: 33.81 mpg (US) Leg - '05 Subaru Legacy 2.5i Thanks: 2 Thanked 2 Times in 2 Posts	With any performance upgrade the only loss in mpg is how you drive. Just like adding lrrt/lwr or a lw crank you're decreasing resistance of the output.