Which is the best cold air intake system, exhaust, suspension items, tune up things like plugs, wires, anything and everything? If you change the stock wheels out with some tight 18's how much of a diffrence will it make on the digital dash? (how would you fix it)

p.s. by the way it is a 86' original, 5 speed, 145,000 miles

i am guessing you have a z31 which is the 84-89 (i think) z's beings the z32's did not have a digital dash. for intake i believe that that k&n is the best. u will have to wait for longlivethez to get on here, he is knowing as the z31 professional around this forum

another z31 guy. nice to see some z31 enthusiasts. longlivethez is the guy to talk to. he should be on here sometime. i would check out z31.com (i think that is it) for information.