I would like to know what the best mods are after i get a tranny? I mean i have read a lot on here about 500HP being the max on a stock eng And i don't realy have the money to buy a new one but i am looking to start a little at a time.I have a 2003 gmc 2500hd 110,000 on her as of right now. no cat but i have a 4" were the cat would be back. 3" turbo to were the cat would be. A k&n full intake Oh plus the ppe boost valve and the edge J.W.A .I would love to here from everyone so i can use the best info for my build.The onlything i do know is i need a tranny.

i would look into efi live.

What's the best way to go on EFI live buying it or just having someone who knows what there doing do it for you. I here its not to hard to do it yourself I just don't know plus I do have my own laptop

EFI + Lift Pump will keep you busy :)

Once my clutch goes, I'll be getting efi live and a lift pump. Oh, and tie rod sleeves since I already have to put it in 4x4 to get up and going.... Not having posi really sucks!

X2 on beefing up the front end

Ok, I was wondering the same thing about upgrades. My 04 GMC HD 3/4 is in the shop getting head gaskets I think? Haven't heard back form them in one and a half days. The coolant was pressurized and blowing out the tank esp if towing 25 ft. goose neck. I had injectors replaced about 20 k ago have 140 K now. I was hoping the injector cups might be the problem but with my luck probably not. I ran on level 3 (edge) most all the time except when towing and would go to 1 to keep egt's down. I don't know a lot about diesel engine but have a drag boat and understand some about motors. What will a lift pump do and the same for live EFI? Sorry for the elementary questions. Thanks Jay

Dont forget about gauges to keep an eye on that newly tuned monster, if you dont plan on keeping the attitude display.

since you are doing everything anyway you may want to look into stage III kits on the tranny just to keep it all intact.

Ok so I know I will need a new tranny but I guess what I would like to know is if I get EFI live should I just buy it and tune me own truck or should I buy it from someone who just flashes my truck computer and sends it back. And has anyone driven around with a 500hp tune without blowing up there motor