9D4Z28

on my 94 z ive got gmmg catback, moroso cai, highflow cat which came with a 1/4 inch bigger y-pipe, and a shift kit. how much hp gain can i expect from a tune at a Dyno?

za355tx

iTrader: (108)

Couldn't tell you for sure from a dyno tune but I'd have to say it's not really worth it with a mostly stock car. Mail order tunes are usually sufficient. The mail order tuners I know say they average about 13 hp gain with a completely stock car. So with some mods like you have maybe a little more, and way cheaper than a dyno tune. I'd use the saved money on another mod.

airfix

iTrader: (30)

For a car with that little mods I wouldnt bother.