TEIN S.TECH Spring is an excellent step towards suspension tuning.

They offer approximately a 1.5 inch drop for a more aggressive appearance. Comes with a 1 year limited warranty.
Spring length is guaranteed not to sag more than 5mm and to be clear of any manufacture defects.

*Features*
* One year limited warranty
* High-grade material adapted to improve guaranteed satisfaction
* Rubber spring protector sheet to prevent noise (most applications)

Spring Rate (F): 308lbs/in (5.5kgf/mm)
Ride Height (F): -1.5in (-37mm)
Spring Rate (R): 492lbs/in (8.8kgf/mm)
Ride Height (R): -1.7in (-43mm)