hi larry
throttle body spacer,hypertech power programmer 3,and i chose the 87 oct fuel tune. what truck does your uncle have?the hypertech is ok and simple,but i like what some of these guys are saying about the nelson custom tune tune.maybe my next truck!

 

hypertech power programmer ***SUC%*** do not use these products, get a LS1 edit

 

hey silverado 03
we all own chevys here,some things are suitable for some people ,or their trucks, and some may not.remember my truck wieghs 6800lbs,and once in a while tow a 20' trailer full of futniture,at 70 -80 mph with no problem. i don't think i could have done it without the hpp111.i might have done better with a custom tune,at the time i didn't know about them.also the 6.0 might react different then the 5.3 to the hpp.by the way your truck is a beauty!raced any hemis lately?ltake a look at mine.

it's a 1500hd lt,6.0,edelbrock headers,gms.drop in kn,tbs,hpp111.

 

thnaks guys guess ill start with headers. i have ls1 edit allready maybe ill add my uncles vin to my cable.

 

hey larry
you never said what truck your uncle owns.i'd like to know how the ls-1 edit works.thanks