My exhaust pipes are already rusty, and I plan to install a new set of pipes for my 69 Mustang with a 351 engine. I would just like to ask what size of pipings would you recommend for this one. Thanks!

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I have a JBA side exhaust kit for 65-70 stangs that is 2.5" for sale I would recommend that size, asking $200 cost $250+shipping new if your interested pm me