Eibach 8" Coil-Over Spring - 2-1/4" I.D. - 800 lb. NPT to AN Bulkhead Fittings The pursuit of perfection has

The pursuit of perfection has always been our primary goal

375" Stem Diameter

ARP studs are thread rolled after heat-treat

The engine computers control solenoids that adjust this oil flow into and out of the phaser's control chambers

The Pro-Series Regulator

Eibach 8" Coil-Over Spring - 2-1/4" I.D. - 800 lb. NPT to AN Bulkhead Fittings The pursuit of perfection hasEibach uses the world's finest quality, chrome silicon steel wire to produce coil springs with maximum travel and minimum weight. Eibach Springs are metric sized and, therefore, not limited to the SAE sized wire used in the production of many of the springs currently on the market. Eibach Springs are cold formed on CNC machinery, insuring precise tolerances on spring rates and free height, as well as longer life expectancy. Eibach Springs are heat