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Message: <blockquote data-quote="Badgertits" data-source="post: 1596360" data-attributes="member: 31322">My ‘15 GMC 6.2 went from bout 15mpg to 13.5 combined after just adding bilstein leveling shocks raising front end 2” & 33” LT rated KO2s that added 13 lbs a corner over the crap 31.5” wrangler SRAs on it stock....w/ their 420hp/460tq ecotec V8 the AFM crap (that stopped activating pretty much entirely after the 33”s b/c it was always working just that Lil bit harder it wouldn’t drop into 4cyl mode) now if I added another 1” of height along w/ 35” tires & maybe headers & intake to try & match a gen2 raptor power level on top of that? Probably be lucky to average 10mpgconsider that a TRX? It’ll be single digits if you or I drove it same as our Rappys I’m sure</blockquote>

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