CHarris

iTrader: (5)

Hey guy's I was just wondering who makes the quietest catback for the GTO? I put a Magnaflow on the H2 and I like it a lot but I think I would the GTO to remain a little more stealthy. I'm really enjoying the subdued style and want more power but without the attention. I'm looking for the quietest Catback at cruise RPM's like 2000-2500 rpm. Anything more than 1/2 throttle can be loud.

Thanks,

Cory

LiqTenExp

Well the corsa catbacks will be the quietest interior noise wise out of them all. Go for the touring if you don't want anything too crazy. The sport sounds really good but if you go with LTs or high flow cats it gets loud.

WickedGoat

I second the Corsa Touring system. Pricey, but it will net the results you are after. Borla may also be one to consider too.

Rob

iTrader: (6)

For the money, keep the stock catback. If you want a new sound, then go for it. Or even a tip change. But for the amount spent, you don't gain that much from the cat back.

Change to long tube headers/cats. That'll give you the sound you are probably after while keeping the rather mellow stock exhaust. I like the way mine sounds

SDB

iTrader: (7)

cat back doesn't make hardly any gain on stock 04 GTO...keep it stock. Headers, cat delete, big Y-pipe, flowtech dump, QTECH electric cutout, stock rear GTO exhaust would do you the best for stralthy.

07Sport

This is a completely uneducated guess based on other products, but Id bet the Borla is the quietest available yet.

LiqTenExp

I've heard the borla in person and its is quieter than the corsa sport but not as quiet as the corsa touring. The main thing about the corsas is that there is no annoying resonance inside. You hear it but you can wisper to the passenger and they have no problem hearing you with the radio on type thing while at cruise.

CHarris

iTrader: (5)

Thanks for the comments guys. I kind of suspected that the Corsa Touring was the quieter of the performance offerings out there. I may just try some long tubes into the stock catback first and see how that goes. Then move on to the Corsa Touring.

Thanks again!

Cory