One of my friends just got a 03 HD and he and i were wondering what are they best mods? which intakes do you have and what are your thoughts on them? And what other mods do you have and what are your thoughts on them, he really likes his truck so far but is addicted to mods. and wants so advice thanks

 

I think the best air filter kits are the JLP and the PSP ones. He can do all the mods that Ls do...pulley, chip, etc etc. Different chip code I believe....

 

Yea those were the key names i have given him so far, because i have the PSP fastair and highflow filter and i am trying to talk him into that but i think he just wants to know what all is out there and working good

 

Good source of info...

http://www.nhtoc.com/forum/index.php?s=