LS1TAUTO

iTrader: (1)

I guess I'm still a newbie cuz I see people talking about free mods I see it all over peoples mods list too?

Squirts11

iTrader: (14)

Basically, porting your throttle body/MAF sensor, throttle body coolant bypass, cutting your ram air box, etc.

Installuniversity.com
myls1.com
bowlingss.com

Those sites should have all of them listed.

But judging by the mods in sig, I wouldn't worry about it, as you're already head/cam etc.

itsslow98

iTrader: (18)

"all coming soon!!! "

hes not there yet

bww3588

iTrader: (49)

mods that dont cost anything, or very little such as parts you can find at a hardware store. such as...

FRA- Free Ram Air Mod. this is cutting out the bottom of the lower air box to allow more air into the box
TB bypass- throttle body bypass. routing the coolant lines below the throttle body insted of thru it.
!EGR- removing the EGR equipment to keep inert gases out of the combustion chambers
!AIR- removing the Air Injection Recirculation. commonly removed when cats are removed becuase the only thing the AIR system does is heat the cats faster.

the list goes on.

MonmouthCtyLS7

iTrader: (6)

A mod that doesnt cost u anything.....

AnnivSS

Dont do the ported MAF, i did it on mine like an idiot and it knocks like crazy above 5000rpm's now. At least on 91 octane anyways.