Cummins 4BT & Diesel Conversions Forums banner


  1. Got an Extra Flowmaster series 70 Bigblock muffler

    General Classifieds
    Hey guys, I ended up with an extra flowmaster series 70 muffler, 3" in and out, center/center. Its new and never opened in the box. Im going to send it back to summit in a week or so, but if someone is intereseted in it. I will sell it for what summit charges and I will pay for shipping (...