supermaro

iTrader: (64)

I'm currently running GMMG, but debating on putting it on my iroc. Now if I do swap should I go to my 4 inch set-up, Corsa, or keep it GMMG?

Thizizkai

iTrader: (3)

what are you swapping in? and I like the GMMG sound Corsa is hit or miss with me...not so nice with stockers but full exhaust its a go. 4 inch is kinda big My cousin has a LSX swapped 85 Iroc and he runs 3" true duals if that helps H/C basic bolt-ons.

C5natie

iTrader: (1)

I think he means a 4in single pipe setup with a y-pipe which would be like 2" duals. 4in would flow better than a single 3" but I know that GMMG sounds good.

ss.slp.ls1

iTrader: (36)

If you are near stock a complete 4" cat back might be over kill. I would just keep the GMMG for now.

supermaro

iTrader: (64)

I'm finishing up my LS2/TFS build.

ss.slp.ls1

iTrader: (36)

I see. Well I've heard that the GMMG is the best sounding exhaust for a stock car but that it doesn't sound very good for a modified car. But I have no idea about the validity of that statement.

redracer1

iTrader: (2)

I'd keep the GMMG.

Corsa sounds great at WOT if your running cats, it gets a little raspy without em.