Swift Spec-R Sport Series Lowering Spring Kit 2015-2021 STI Subaru JDM-InStock they feature deep valve reliefs

they feature deep valve reliefs for high lift camshafts

essential when installing coilovers or lowering your car

reduced sulfated ash for emission system protection

keeping oil temperatures in check is essential for performance and engine longevity

Swift Spec-R Sport Series Lowering Spring Kit 2015-2021 STI Subaru JDM-InStock they feature deep valve reliefsSwift Spec R Springs are designed at the upper limits of the OEM shock valving. Track Tested and Tuned for optimum performance yet keeps the quality ride you get from the showroom, and adds improved handling and lower ride height for driving enthusiasts and style minded drivers who demand only the best. From HPDE events to SCCA competition, Swift Spec R Sport Springs are made for the track enthusiast looking to take their vehicle to the next level.