Supertech - K-Series Dual Valve Spring Set (Set of 16)

Supertech - K-Series Dual Valve Spring Set (Set of 16)

Product Type: Springs & Retainers
Regular price
Sale price
Regular price
Unit price

Product Details


Supertech dual valve springs are designed and manufactured to reduce valvetrain harmonics, increase durability, and provide an increase in performance for your high-performance racing engine. All dual valve springs are manufactured using super-clean chrome silicon vanadium alloy and are heat-treated, stress-relieved and shot-0peened to help improve the fatigue life of the spring. Supertech performance valve springs are made with premium super-clean Chrome Silicon Vanadium Steel Alloy for higher performance and durability. Computer designed to ensure that wire stress levels do not overpass the limits for long durability under extreme conditions and harmonics are well under control.Engine Applications: Honda/Acura K-series* K20A/A2/A3/Z1/Z3+K24A2/A3 / Dual springs - 16pc set Available spring seat pressures: 80lbs, 85lbs, 95lbs, 97lbs, 100lbs *IMPORTANT K-SERIES NOTES: If your K-series engine comes equipped with single valve springs, which a majority of US K20/24 engines do, you will need some additional Supertech or OEM valvetrain components in order to complete a dual valve spring upgrade. Some K-series engines are equipped with dual v.springs from the factory such as the 02-early Acura RSX Type-S, JDM K20A Type-R (DC5/EP3/CL7/FD2)  engines - these do not need additional components. In rare cases, some K's come with dual v.springs on the intake side only and single on the exhaust side, and K24A2 and 05+ K20 engines come with single v.springs on both sides of the head. A simple visual inspection of your own K-series valve springs (by you or your mechanic) will help indicate what you have and what you will need. Honda changed the design of the factory retainers & keepers on the 05+ K-series engines (05-06 RSX K20Z1 / 06-11 Civic Si K20Z3). When upgrading to dual v.springs on these specific motors, you must change the retainers to pre-2005 OEM retainers and keepers (or you can run Supertech Ti Retainers) but you will need pre-05 OEM keepers. You cannot mix 05+ retainers + keepers with pre-05 retainers & keepers. You cannot reuse 05+ retainers & keepers with a dual valve springs upgrade either.With that said, here are the following additional components required to complete a dual valve spring upgrade on K-series engines that come stock with a complete or partial single valve spring configuration from the factory. Again, if your K-series engine comes with complete dual v.springs from the factory (both sides of head), disregard the information below. Dual valve spring bases (Supertech or OEM Honda) Valve guide seals (Supertech or OEM Honda)- installing dual v.spring bases' require valve guide seals to be removed and replaced Dual valve spring retainers x 16pcs (Supertech or OEM Honda) - the keepers from 02-early'03 Acura Type-S and any JDM K20A Type-R engines (w/dual springs) can and should be reused!- Late 2003+ Acura RSX Type-S and 06-11 Civc Si engines must use 02-early '03 K-series dual v.spring retainers & keepers upon switching to dual v.springs. * Supertech Titanium retainer design is based off the 02-early '03 RSX Type-S K20A2 retainers / JDM 01-05 RSX Type-S/EP3 Civic Type-R K20A engines. If your K-series has dual valve springs on the intake side and single springs on the exhaust side, then you only need the mentioned components for the exhaust side.    

Shipping & Returns

Returns Policy

Our return policy varies between products on whether you can return it or not. We do stand by the policy that ALL POSSIBLE returned products will be charged with a 20% Restocking Fee. NO FULL REFUNDS. If you have any questions about returning your items please contact our reps at 732-638-5268 or email


We stand by our policy of same day shipping on all in stock items if purchased before 4:30 PM (Eastern-Time). If an item is not in stock, you will have an update as to when your item will ship within 24 hours. Below is a map locating where we do our one day shipping to. If you have any questions about shipping make sure to email us at or call our reps today at 732-638-5268.

Lost/Stolen Package

If by any chance, your package that has been delivered by the carrier is lost/stolen, YOU (THE BUYER) are responsible for working with the carrier and us, Tri-State Motorsports to recover your package. You must contact us and the shipping company within 48 hours of delivery for lost/damage claims. You are covered by the basic insurance amount APPROVED by the shipping center. We DO NOT refund or reship product for claims that are denied by the shipping company.

NOTE: Once the products have been shipped, the order CAN NOT be canceled.

Main Shipping Carrier: UPS


Does this product fit my Vehicle?

Please read the Description carefully. We try our best to put vehicle fitment information on all of our products description. If by any chance your vehicle is not listed and you have a question, feel free to ask one of our experts at 1 (844) - 442-8118 . Please have the product SKU ready.

When will this product ship out?

If the product is in-stock and the order is placed before our shipping cut-off time (4:30PM Eastern-Time), your product will ship the same day. If the product is not in stock, you will have an update as to when your item will ship within 24 hours. Click on the 'Shipping & Returns' tab to view the map locating where we do our one day shipping to. If you have any questions about shipping make sure to call our reps today at 1 (844) - 442-8118.

What's the Warranty on this product?

Unless the product is manufactured by Tri-State Motorsports or TSM Race, ALL Warranties go through the Manufacture directly. Please visit their official website and get in contact with them in regards to your warranty. We will supply you with any invoice or tracking information the manufacture asks you for.

How can I finance this product with Affirm?

Affirm Loan-Application Process Steps:
  1. At checkout, choose Pay with Affirm
  2. Affirm prompts you to enter a few pieces of information: Name, email, mobile phone number, date of birth, and the last four digits of your social security number. This information must be consistent and your own!
  3. To ensure that you're the person making the purchase, Affirm sends a text message to your cell phone with a unique autorization code.
  4. Enter the authorization code into the application form. Within a few seconds, Affirm notifies you of the loan amount you're approved for, the interest rate, and the number of months you have to pay off your loan. You have the option to pay off your loan over three, six, or twelve months. Affirm states the amount of your fixed, monthly payments and the total amount of interest you'll pay over the course of the loan.
  5. To accept Affirm's financing offer, click Confirm Loan and you're done.

Product Reviews


Sold Out