most mods are cosmetic or non performance but here is the list

piaa air dam
smitty bilt outland sport
4 kc daylighters
custom switches
airiad intake
airaid tb spacer
ported tbody
200 amp powermaster alternator
optima red top
glasspacks
alpine hu
boston pro 6.5
jl500/5
2 jl micro subs
otherguys headers
lunati cam
some head work
ls1 edit
285/75/16 terra graplers
line x
covercraft seat savers

thats all I can remember