Any one no a company that sell's x pipe's for the gto's im looking to for more sound then just my cat back ............

 

I believe Corsa does.

The Duke

 

You can have a Magnaflow X-pipe welded in place of the stock resonator on an 05 and retain the factory exhaust. Most of the 05 cat-back systems have an X-pipe as part of the system however. The Corsa has been said to be very loud on 05's for some reason.

 

yea but i want a bolt on kit cause i want to run it with no converters then when tag time comes around bolt my stock one back on .... but im not sure if converters are on stock pipe or on manifold?