id like to get an aero turbine. i dont want crazy loud sound but i do want a little tone. from what im understanding if i open up the exhaust i will lost MPG's. i dont wanna sacrifice those. what would you guys recommend? maybe a 3 or 3.5 inch aero? possibly an aero with the built in resinator? is the aero even an option for me? what will it do for my power? help me decide fellas

i have an 03 cumming with the standard output. anyone know what size the stock exhaust is on that?

thanks for all the help

 

if the exhaust if 4", like mine,, I would go with the 4040xl and leave the cat on. It will add a good sound,, and still have enough back pressure so that nothing will be lost.