exhaust downpipes
Hello everyone, first time post here. Hoping someone can help me. I have a 1968 GMC 2500 pickup. I know this is the wrong forum (1968) but no one else has been able to help, because I have the 351 V6. Looking for downpipes. Seemingly no one knows what will fit. I would really like to build a dual system myself, and not go to a custom muffler shop. Thanks for any help.
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