Hypercoils 10" Coil-Over Spring - 1- 7/8" I.D. - 400 lb. 13-RS1-B-L Titanium nitride coated high speed

Titanium nitride coated high speed steel

These valley covers are machined smooth on the underside

100-175 hp kit or medium blower

1986-1994 Dodge B150

2006 Jeep Wrangler 65th Anniversary Edition

Hypercoils 10" Coil-Over Spring - 1- 7/8" I.D. - 400 lb. 13-RS1-B-L Titanium nitride coated high speedHypercoils 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