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7.3 idi exhaust size

  1. 94 7.3 IDI exhaust size?

    7.3L IDI (Non-Powerstroke) Diesels
    what size exhaust do you guys recommend for a 94 econoline 350 van 7.3 idi non turbo, I know there lot a truck exhaust systems or kits available for the 7.3 psd trucks but I can't seem to find any exhaust kits for the older idi engines. the main reason I am changing the exhaust system is because...