I am in the planning stages of a 350 swap for my T/A and I know I will be using headers probably hedman shorties but should I trash my 2.5 inch dynomax catback in favor of 3 inch or just leave it until its time for a replacement and then upgrade.

 

I wouldn't trash it but you could try and sell it on ebay or somethin. I personally like the 3' exhaust.

 

An exhaust system is only as good as it's weakest point.

go for the 3'', you can prolly sell the 2.5'' one to a V6 guy.

 

yeah, id suggest a 3" catback