performance mods for an 88? good luck, i havne't been able to come across any for my 87...but if i find some ill let you know....
for the speakers check out crutchfield.com they have just about everything...that's where im ordering all my stuff from...i have an alpine head unite and need 4 4" speakers, and gonna put their type-r 12's in there with about 6-800 pushing them
have you got pics of ur car with the body kit yet?
Peacefully
,
Guerilla