Circuit Sports SR20DET/KA24 transmission adjustable strength shift return spring kit. Comes with large and small shifter return spring for low to hard shift return setting. Total of 6 combinations of shift return rebound which can be adjusted. Main purpose of this kit is to reduce the sloppy shifter return feeling that's associated with stock transmission and helps to improve shift time.

Note: Direct bolt on replacement from original shift return springs on the side of the shifter. Transmission kit comes with 2 large hard springs.

** All Circuit Sports products are backed by a limited life time warranty against defects and workmanship.**

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