PRL Motorsports - Premium Automotive Performance Products

Tein 2017-2021 Honda Civic Si FC1 / FC3 / FC4 Coupe / Sedan Flex Z Coilovers

Tein 2017-2021 Honda Civic Si FC1 / FC3 / FC4 Coupe / Sedan Flex Z Coilovers - Main image
$1018.14 $1434 In stock

Category: Coilovers

Fits all 2017-2021 Civic Si Coupe & Sedan
Fits all variant models including RHD, International Models, Etc.

NOTE:FT: EXCLUSIVELY FOR VEHICLE WITH 50.2MM DIAMETER OE STRUT. NOT COMPATIBLE WITH VEHICLES PRODUCED IN CHINA. RR: USE OF EDFC SERIES IS RECOMMENDED, AS IT'S DIFFICULT TO ADJUST DAMPING FORCE BY HAND DUE TO VEHICLE STRUCTURE.

Overview

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 it's 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.

TEIN Flex Z Coilovers Specs and Features:

  • 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
  • Includes Upper Mounts for Easy Installation (some vehicles use OE mounts)
  • Includes Dust Boots (some vehicles use OE dust boots)
  • TEIN Quality for durability, reliability and rust proofing
  • No-Sag Springs
  • 16 Way Adjustable
  • Full length ride height adjustment
  • Includes Upper Mounts w/ Front Camber Plates
  • Spring Rates: 336 lb Front and 336 lb Rear
  • Includes a full set of 4
  • 12 Month Warranty
  • Genuine TEIN

Please Note: Canceller unit for OE adapter damper system is included. The attached photos are generic and may not accurately represent the product that your receive.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Olivia Z. ★★★★★

Took these out for a canyon run right after installing them and the 32-way damping adjustment made dialing in the perfect balance between comfort and cornering grip incredibly easy. The ride height drop is just right for daily driving without scraping on everything.

Riley ★★★★★

The 50.2mm strut diameter fit my 2017 Si coupe perfectly with zero issues. Ride quality is noticeably firmer than stock without being harsh on the daily commute.

Matthew H. ★★★★★

Installed these on my 2019 Si sedan and the ride is noticeably firmer over bumps while still feeling planted in corners. The 50.2mm strut diameter matched perfectly with my factory setup, no adapter needed.