gsmith9898

I drove a 2002 chevy half ton with a 5.3 and it pulled my boat like it was nothing. When I got back I found a nice 1999 with the 5.3 and it seems to not have near the power. I changed plugs, wires and fuel filter and no change. Did they make a horsepower increase after 1999? Can you change a chip in computer?

Sean H

the first ones were like 260-270 Hp and the new ones are 295.... i don't know if you can upgrade them or not...

gsmith9898

I came up to loto last week end with that 2002 and the first day back I bought this 99 and it is the diifernece of nite and day.

articfriends

iTrader: (1)

I have a power dyne supercharger kit for a 99-02 5.3 truck for sale,was 4300$ new,800$ like new, hardly used.It came off a suv that rolled over after85oo miles so it's like new. Needs a couple pieces to complete the kit that are missing but the key stuff is there,35-60% power increase over stock on pump gas,Smitty

gsmith9898

what are the pieces it is missing? What do you change on computer?

articfriends

iTrader: (1)

The main thing thats not there is the power programmer for the computer,it has a program that pulls timing out of it under boost. The actual supercharger,discharge piping,adapter to front of throttle body,a aftermarket maf (that i don't even think is needed) and the head bracket are all there. Nickel dime things that would cost a few hundred(belt,aftermarket fuel regulator,inline booster fuel pump etc )are also mising but they are 30-80$ parts that you can find anywhere and pick premium pieces while your at it). If your remotely interested i can post pictures,Smitty
or e-mail you pics i see your a free member.