I have the Hypertech Max Energy power programmer (P/N 52001) on my JK. I am getting 12 - 14 mpg in town and 17 mpg on the highway while driving around 65 mph without many stop & go situations.
2008 Wrangler Unlimited Sahara 4X4, Black with Khaki Interior, Magna Flow Performance Exhaust, K&N FIPK Kit, Hypertech Max Energy Power Programer, LT325/60/18 Nitto Terra Grappler Tires, 18x9 Moto Metal Chrome Wheels, Rubicon Express 2.5" Spacer System with Rubicon Express Shocks, PUREJEEP rear bumper with swing a way tire carrier,Woodgrain dash overlay, Husky Floor Liners, Neoprene Center Console Arm Rest, Door Sills. Security System:Glock 22
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