MagnaFlow's GM Duramax Diesel systems feature giant, fast-flowing, mandrel-bent stainless steel tubing, a Stainless Steel MagnaFlow Performance Muffler and a polished stainless steel tip. Duramax systems bolt directly to the OEM downpipe flange. You can expect significant gains in horsepower, torque, fuel economy and a lower EGT (exhaust gas temperature).

MagnaFlow's Dodge Cummins Diesel systems feature giant, fast-flowing, 4'' mandrel-bent stainless steel tubing.The MagnaFlow Dodge systems incorporate an extra-long 30'' stainless steel muffler for extra sound control. You can expect significant gains in horsepower, torque, fuel economy and a lower EGT (exhaust gas temperature).

Ford Downpipe-Back bolts up to the OEM downpipe flange, yielding substantial gains in horsepower, torque, fuel economy and a lower EGT (exhaust gas temperature).