hulm333 Posted August 12, 2009 Report Share Posted August 12, 2009 I HAVE JUST BOUGHT A 2008 SILVERADO WITH 5.3 FLEX FUEL ENGINE. AND I WANT TO GET IT TUNED. WHAT KIND OF GAINS CAN I EXPECT? AND WHO?? Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted August 13, 2009 Report Share Posted August 13, 2009 Expect gains in the ball park of ~25hp +, and 1-2mpg also..... Get in touch with Charlie Wheatley here on the forum, he can set you up. Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted August 13, 2009 Report Share Posted August 13, 2009 on the 4.8 and 5.3 NNBS trucks they come pretty well tuned from the factory so unless you have mods done I would wait Quote Link to comment Share on other sites More sharing options...
zippy Posted August 15, 2009 Report Share Posted August 15, 2009 Figure about 15-20hp and alot of gains in getting the trans tables tuned in. Quote Link to comment Share on other sites More sharing options...
hulm333 Posted August 19, 2009 Author Report Share Posted August 19, 2009 Figure about 15-20hp and alot of gains in getting the trans tables tuned in. dont you do tuning? i know i bought a shift kit from ya a while back. how much to get one done for my 08 Quote Link to comment Share on other sites More sharing options...
RevolutionRaceWorks Posted August 19, 2009 Report Share Posted August 19, 2009 dont you do tuning? i know i bought a shift kit from ya a while back. how much to get one done for my 08 he does but I think since he isn't a sponsor that's why he isn't plugging it. Pm him Quote Link to comment Share on other sites More sharing options...
zippy Posted August 20, 2009 Report Share Posted August 20, 2009 dont you do tuning? i know i bought a shift kit from ya a while back. how much to get one done for my 08 Yes, just give me a call when you get some time and I'll take care of ya. Quote Link to comment Share on other sites More sharing options...
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