H&R 60mm ID Single Race Spring Length 140mm Spring Rate 90 N/mm or 514 lbs/inch - RF140090 fits_2008-2009`Pontiac`G8 Roto-Molded Intake Tube and One-Piece

Roto-Molded Intake Tube and One-Piece Sealed Housing w/ Air Inlet

2003-2004 Ford F-350 Super Duty 6

4 Liter M58

make your vision come alive with AutoTecknic

X-Pipe with Resonators Balance Tube: The equalizer balance tube evenly distributes exhaust pulses traveling through the exhaust system

H&R 60mm ID Single Race Spring Length 140mm Spring Rate 90 N/mm or 514 lbs/inch - RF140090 fits_2008-2009`Pontiac`G8 Roto-Molded Intake Tube and One-PieceH&R 2. 50" I. D. Race Springs are made with extremely high tensile strength wire alloy which allows the use of a thinner wire. Manufactured using advanced materials and precision technology in Germany, H&R 2. 50" I. D. Race Springs are crafted from special lightweight (hf) 54SiCr6 spring steel. For any given spring rate, they are on average 15% lighter and have 10% more travel than competitors' springs. Main springs range from 6" to 18" in length and