All of the Duramax exhaust systems will come DOWNPIPE BACK and will not include a downpipe.
The PPE 117000500 3" STAINLESS STEEL DOWNPIPE will work to replace your factory, restrictive downpipe for a higher flowing one.
Complete the job with these highly suggested add-on products.
Product prices marked with an * may require additonal fees, such as a core charge, which will be displayed in the cart.