Proflow Exhaust Tubing, Mandrel U-Bend, 180 Degree, Steel, 18-Gauge 2-1/4in, 3.5 Rails etc you will need one of

you will need one of these billet hold-down clamps

Same as what was used on many Ford factory performance vehicles including Boss 302 & GTHO Falcons etc

Constructed of billet aluminum with a black anodized base and clear anodize top for good looks

JCB STD00088

Proflow Exhaust Tubing, Mandrel U-Bend, 180 Degree, Steel, 18-Gauge 2-1/4in, 3.5 Rails etc you will need one ofPart Number : Fabricate your race exhaust with U and J mandrel bends from Proflow. Crafted from 16 gauge and 18 gauge steel, these exhaust tubing U bends and J bends are mandrel bent to keep exhaust flow high and your performance maximized. Most U bends have either 9 or 7. 5 legs, while their J bends have both 3 and 15 legs. Are you creating a special fit exhaust for your race car? Use Proflow U and J mandrel bends in your build.