[Tx Firefighter]

I'd run aluminized 2 1/2 exhaust on your truck. It might be a teeny bit big for a 307, but the stroker will love it.

I see where you live, across town from me really. All the local shop in this area keep 2 1/2 aluminized pipe in stock. Your mufflers will almost surely be aluminized. When they get the system done, touch up the welds with aluminum colored spray paint.

This system won't be as sexy as some jet hot coated front to back system, but it will be pretty cheap and last forever in our climate. Looks great too!