New KRX Performance Spring
This spring is made from ASTM A228 Music Wire and is made in the USA
This spring pulls harder off the bottom and all through the RPM range.
This spring will not lower your RPMS as much as our light spring but they will be lower than the factory spring so if you are looking for lower RPMs and less cabin noise you will want our Light spring, if you want the best performance this is the spring you need.
 Delrin washer included to keep the spring from binding during compression.