Tein S Tech Spring Kit Subaru WRX STI 2005 2007 SKS66 AUB00 TEIN STREET ADVANCE Z MAZDA MX5 NA NB DNA autoparts Tein S Tech Spring Kit Mazda Mazdaspeed 2007 2009 SKM80 AUB00 MazdaSpeed Eibach Pro kit Springs MX 5 Miata Forum. Description: TEIN S. Tech Springs are an excellent step towards suspension tuning for your 2016+ Mazda MX 5 Miata (NDERC). They offer approximately a 1. 4 front & 1. 4 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. 2016+ Mazda MX 5 Miata (NDERC) (Lowers Approx F 1. 4" R 1. 4") Front 3. 4 kgf mm (190 lbs in) Rear 1. 8 kgf mm (101 lbs in) Note Spring image may not be for your specific vehicle.