TEIN Flex Z Coilovers Honda Civic Si 10th Gen

$1,135.00 USD $1,434.95 USD Save $299.95 USD

Shipping calculated at checkout


Fits: 10th Gen Honda Civic Si

TEIN Flex Z Coilovers are the latest in TEIN's generation of high end coilovers.  The difference with Flex Z is that you are getting a coilover that would normally cost almost double the price.  The new manufacturing systems that TEIN has put in place with this line of coilovers has allowed for them to produce these coilovers at a lower price and pass that savings on to you. 

Quality and performance remains top of its class and TEIN builds these Flex Z coilovers with the highest quality standards in Yokohama, Japan, making these a true Japanese JDM coilover system.

TEIN Flex Z has an awesome twin tube internal system that gives you one of the best street rides we've seen.  In addition, the full-length height adjustment system enables you to lower the car to the max allowable level and still maintain the same shock travel and ride quality. 

TEIN Flex Z is 16 way dampening adjustable (compression and rebound together) so you can made the ride stiffer or softer depending on what you are looking to achieve.  For example, you can set the dampening to a low setting for when you are daily driving the car and set it up to a stiffer/firmer setting for track or competition use. 

These coilovers include upper mounts for each installation.  Each kit comes with either reinforced rubber upper mount or a pillowball upper mount.  Pillow ball upper mounts are for strut suspensions and include front camber adjustment.

TEIN takes pride in their products and each one is built to be the best quality possible.  TEIN coats each Flex Z with "ZT Coating" that prevents rust and has multiple layers to ensure the best finish. 


  • Made in Yokohama, Japan
  • Twin-Tube for comfortable street ride
  • Full-length system for height adjustment with minimal change in ride quality even at lowest setting
  • EDFC-compatible 


  • Honda Civic Si Sedan (2017, 2018, 2019, 2020) Lowers 0.8" to 2.5" Front Lowers 0.8" to 2.9"
  • Rear Honda Civic Si Coupe (2017, 2018, 2019, 2020) Lowers 0.8" to 2.5" Front Lowers 0.6" to 2.7"



  • Upper Mounts w/ Front Camber Plates
  • Dust Boots (some vehicles use OE dust boots)
  • Includes a full set of 4 TEIN-quality for durability, reliability, and rust-proofing,  no-sag springs(spring rates: 336 lb front and 336 lb rear) 
  • 12-month Warranty
Image is only a representation of the coilovers.  TEIN doesn't have vehicle-specific images.  Your coilover will be specific to your vehicle.  If you have any questions about this kit, please email us, prior to ordering.  

Add $2.50 USD more for FREE shipping!