Tein 2013+ Lexus GS350 (GRL10L) Flex Z Damper Kit

If you're looking to dial in the handling and stance of your 2013+ Lexus GS350 (GRL10L), the Tein Flex Z Coilover Kit is a solid option. This kit replaces your factory struts and springs with a complete, integrated damping system designed to give you more control over your vehicle's ride height and stiffness. It's a popular choice for drivers who want to lower their car for improved aesthetics and a more connected feel to the road, without sacrificing too much comfort for daily driving.

The Flex Z system uses Tein's advanced twin-tube damper technology, which is known for its smooth operation and durability. These dampers are built with a durable steel casing and feature a special internal valving that allows for a wide range of adjustment. You get 16 levels of damping force adjustment, controlled by a simple knob at the top of each strut. This lets you easily tune the suspension from a comfortable street setting to a firmer, more responsive feel for spirited driving or track days. The kit also includes adjustable spring seats, allowing you to precisely set your desired ride height. Tein includes their EDFC (Electronic Damping Force Controller) compatibility, so you can even add an optional electronic controller later to adjust damping on the fly from your dashboard.

This kit is designed as a direct replacement for your factory suspension components, meaning no welding or cutting is required for installation. It comes with everything you need to get the job done, including the coilovers themselves, upper mounts, and any necessary hardware. While installation is straightforward for someone familiar with suspension work, it's always a good idea to consult a professional if you're unsure. The result is a well-built suspension system that offers a significant improvement in both looks and performance for your GS350.