H&R Sport Springs STI (2008-2014) Variations:H&R Sport Springs STI Sedan (2011-2014) hard anodizing builds up a

hard anodizing builds up a hardened layer over the base material to help prevent wear

PERRIN Polyurethane endlinks are significantly less expensive than spherical bearings without a huge sacrifice in performance

Not suggested for any MS3 that gets used on the street

Popular in late-model Ford truck rear differentials as well as many other common models

The results are the best performing

H&R Sport Springs STI (2008-2014) Variations:H&R Sport Springs STI Sedan (2011-2014) hard anodizing builds up aThe most popular spring in H&R's line up! H&R Sport Springs for the Subaru STI feature more control and are engineered for the street, making them comfortable and fun to drive. For the STI, H&R Sport Springs are crafted from a special 54iCr6 spring steel to ensure quality and performance. FITMENT and Estimated Lowering: STI 2008 2010 F: 1. 0" R: 1. 0" Part number 54464 STI 2011 2014 F: 1. 1" R: 1. 2" Part number 54465