Hypercoils 13" Rear Coil Spring - 5" O.D. - 225 lb. 50000041 Includes gaskets and crankshaft seal

Includes gaskets and crankshaft seal

00 inch mandrel-bent 409s stainless steel tubing and utilizes Flowmaster's patented D-port design to help maximize exhaust scavenging

Forged Steel Crank

allow for optimization of the total vehicle performance on many Circle Track vehicles and applications

Suitable for most classes of circle track or drag race cars and even the tow vehicle

Hypercoils 13" Rear Coil Spring - 5" O.D. - 225 lb. 50000041 Includes gaskets and crankshaft sealHypercoils are manufactured from the highest quality chrome silicone steel and high tensile chrome silicone steel available in the world. The material used in producing Hypercoils undergoes two separate magnaflux inspections. Once before manufacture and again after coiling. These inspections insure the wire is free from surface imperfections which, if gone undetected could lead to spring failure. The life of a suspension coil is directly related to