Infiniti Sports Performance at Tommie Johnson blog Tein S.Tech Spring Kit 2017+ Infiniti Q60 Red Sport 3.0T (CV37) TEIN H.Tech Springs 2015+ WRX 2015+ STI 2017 Infiniti Q60 3.0t Sport: Special Editions & Charitable Causes. Description: TEIN S. Tech Springs are an excellent step towards suspension tuning for your 2017+ Infiniti Q60 Red Sport 3. 0T (CV37). They offer approximately a 0. 6 front & 1. 2 rear inch drop for a more aggressive appearance and increased road holding capability. Designed to be used with OEM or OEM replacement shocks. Each application is road tested in North America for the proper balance between performance and comfort. Comes with a 1 year limited warranty, spring length is guaranteed not to sag more than 5mm, and be clear of any manufacturer defects. Additional Features: Chrome Vanadium SAE9254V Construction Progressive Spring Rate Design Includes Silencer Rubber on certain applications Green Powder Coat Finish Developed to be used in conjunction with OEM dampers 1 year Manufactures Defect and Sag Warranty. Cover over 5mm sag, breakage, deformity, and noise. Does not cover powder coat finish and rusting. 2017+ Infiniti Q60 Red Sport 3. 0T (CV37) (Lowers Approx F 0. 6" R 1. 2") Front 9. 8 kgf mm (549 lbs in) Rear 4. 1 kgf mm (230 lbs in) Note Spring image may not be for your specific vehicle.