any know what size the dynatech y pipe is that comes with the headers for the 2007 dodge ram is it 2.5" or 3"

 

if i were to guess, id say its two 2.5" that merge into one 3" outlet. but thats just an educated guess on my part, so take it with a grain of salt.

 

Which is plenty big enough.

 

thanks i just wanted to know because im goan order a E cutout the same time i order that header system

 

I had a 79 chibby i built up and used Dynatech. Made by Holley id memory serves. GOOD stuff. Only complaint i had was the header paint. It began to burn off within seconds of starting it. Id buy some black grill paint and strip em and resquirt em.