This is a pack of two optional Yokomo YR-X12 Push Rod Springs. These springs are identified by their all black color and feature a volume of 4.5.
Available Push Rod Springs:
- YOKYX-39SG: Gold 3.5 Volume (kit)
- YOKYX-39SS: Silver 4 Volume
- YOKYX-39SB: Black 4.5 Volume
This product was added to our catalog on October 4, 2016