Lexus IS 250/IS 350 (2006-2013) Sport Springs Stack Guide *Image example is a 575lbs/inch

*Image example is a 575lbs/inch spring rate

Part Number: Z65-127-280

Part Number: 120-300-185

and give the car a more planted feel when you start pushing it

Lexus IS 250/IS 350 (2006-2013) Sport Springs Stack Guide *Image example is a 575lbs/inchImprove the handling while keeping ride quality with our Swift Sport Springs for the 2006 2013 Lexus IS 250 IS 350. Designed by driving enthusiasts and style minded drivers that demand only the best, you'll not only notice a visual difference in drop height but feel a noticeable improvement. Specifications Part #: 4T040 Spring Rates Front: 5. 4kgf mm Rear: 5. 6kgf mm Lowering Amount Front: 0. 8inch (IS 250) 1. 0inch (IS 350) Rear: 0. 6inch (IS 250) 0.