Eibach 15" Rear Coil Spring - 5" O.D. - 150 lb. DNC5RLP A hose connects both tubes

A hose connects both tubes to balance air intake pressure

6 AN Male to 5/16 in Tubing

* Performer RPM Cylinder Heads have all of the same great features as our Performer series heads

1/2-13 and 1/2-20 in Thread

Eibach 15" Rear Coil Spring - 5" O.D. - 150 lb. DNC5RLP A hose connects both tubesEibach 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