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2000-2006 GMC Yukon XL 2500
Billet Speed Pump Controller P/N 16306 recommended for EFI street applications
Viscosity typical of 75W-110
GM Fullsize Truck 2008-13
178 cc Intake
Hypercoils 12" Coil-Over Spring - 2-1/2" I.D. - 300 lb. HASZ20SM 2000-2006 GMC Yukon XL 2500Hypercoils 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