This listing is for one set of brand new Brian Crower Valve Springs + Steel Retainers for Nissan SR20DET SR20 Fits = S13 S14 S15 RWD and FWD engines. Will Not work with GTiR AWD engines Pressure @ Seat 1.550" = 90 lbs Pressure @ Open 1.025" = 220 lbs Includes = 16x Springs + 16x Steel Retainer Part Number = BC0200S .
