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Fits 2015-2021 WRX & STi Models
Race (Red LED) : 93 Octane or Higher is recommended
Soft Part Replacement Packages for existing air intake systems 51-82342 & 54-82342
and jumps) and low-speed compression (body movements like squat
H&R 60mm ID Single Race Spring Length 100mm Spring Rate 360 N/mm or 2055 lbs/inch - RF100360 Shopify Collective Fits 2015-2021 WRX & STiH&R 2. 50" I. D. Race Springs are made with extremely high tensile strength wire alloy which allows the use of a thinner wire. Manufactured using advanced materials and precision technology in Germany, H&R 2. 50" I. D. Race Springs are crafted from special lightweight (hf) 54SiCr6 spring steel. For any given spring rate, they are on average 15% lighter and have 10% more travel than competitors' springs. Main springs range from 6" to 18" in length and
