Former Vette owner, just bought a 5.3 yukon.....what are the basic free mods you guys are doing? Here is my list so far (not free):

1) CAI
2) New plugs/wires
3) Pacesetter headers
4) Tune
5) Cam?

Do throttle body mods make a difference on these cars? Anything I am missing here that won't break the bank? Thanks....

 

good list, thats basically what i would do if i had a new truck, just add a stall to the list.

if you dont like the stall, go for e-fans, and asp pulley.

 

How much are the efans and pulley worth in terms of rwhp?

 

I would say 20ish. Get an exhaust too. Get a good tune not a handheld. A small stall would help out alot on get that heavy suv moving geta shift kit and servos and when your truck is tuned they can take all tm out of the tranny and that will make big difference. The cam is up to you many people have good experiences with them it will take alot of tuning to get the cam working just right to get the most hp out of it.Just my .02

 

How much is a small stall? Installation? Will that be good if I tow my boat sometimes?

 

small stall $150 to $600, installation say about $250 to $350, for towing get one with a stock or close to stock diameter.