TEIN S.Tech Lowering Springs Kit for 03 13 Infiniti G35 G37 2dr Coupe 2004 2006 Infiniti G35x AWD AirLift Performance Rear Suspension Front Left Quick Complete Strut Coil Spring For 2004 2006 Infiniti G35 Tein 03 07 Infiniti G35 Coupe 03 06 G35 Sedan V35 03 08 Nissan 350 How to install Tein Lowering Springs (G35) YouTube. TEIN S. Tech Springs are an excellent step towards suspension tuning for your 2004 2006 Infiniti G35X AWD (NV35). They offer approximately a 1. 5 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. 2004 2006 Infiniti G35X AWD (NV35) (Lowers Approx F 1. 2" R 0. 8") Note Spring image may not be for your specific vehicle.