JST-Performance

05/15/2026

The Competition Clutch Twin Disk still holding up amazingly in our Focus ST!

This is the VERY FIRST ST/RS Twin Disk clutch kit ever put on the market, and our car was used for the design, fitment, and testing of this kit as well as all other ST/RS clutch kits.

We actually loaned the car to Competition Clutch for a month or so back in 2016ish for them to design and build the original kits.

We sell and install more of these than any other brand, and will continue to use them!

If you are in need for a kit for your car and/or install, check out our website or shoot us a message!

www.jst-performance.com

05/14/2026

FoST yeet through Turn 3 at Road Atlanta!

📸

05/11/2026

Wow, what a crazy weekend we had at Road Atlanta (peek the rear wheel as we limped back in during Race 3!) Full recap coming soon, but to put it simply...this car is a beast, and we are just getting started!

📸

05/07/2026

Ready to get this weekend started at Road Atlanta with and

Here's to hoping all of our changes and upgrades since CMP payoff! Thanks to all of our sponsors who help to make our racing weekends a success!

05/04/2026

It's race week! We will be loading up and heading out to Road Atlanta this Thursday for Round 2 of the GLTC season! Excited to share the track with again this year! Catch us on the live stream this Friday or come visit us at the track!

04/28/2026

Only 1 week out until we load up for Round 2 at Road Atlanta. We just finished buttoning up the Alpha FoST with a ton of repairs and some new upgrades! We will be spending the next few days breaking in the new custom diff from , dialing in the suspension changes from , and updating the tune to take advantage of new goodies from

04/24/2026

We busted a wheel and shredded a tire in race 1 at CMP. But that didn't stop us! A good customer and friend stopped by to offer up a wheel off of his personal ST for us to mount a used tired on. Peek the mismatched wheel and tire setup that managed to get us 17th place finish in race 4! Round 2 at Road Atlanta in less than 2 weeks, we will be shooting for a top 15 or better finish!

04/22/2026

The GLTC debut weekend surpassed all of our expectations! Yeah, we have a pretty long list of things to fix as well as a few upgrades to install before round 2 at Road Atlanta in just 2 weeks, but that's to be expected with a car that hasn't been raced in over 7 years! We are looking forward to seeing how she progresses throughout the year!

01/29/2026

FL5/DE5/FK8 Hondata Custom Tuning is now available on our website. Click the link below for more details!

FREE JSTUNED Decal, JSTUNED Colorblock Decal, Team JST Printed Decal, Team JST Decal, or JSTUNED Keychain with Custom Tune Purchase! Discount will be applied during checkout, just add your swag item of choice to the cart along with your custom tune! (Very Important: Don't forget to add your item to....

12/01/2025

It's the final day for 25% off Custom Tuning + discounts site wide! This is the only time of year we discounts our Tuning, so get in on it while you can at https://jst-performance.com

11/28/2025

Just a reminder that we are currently running our best sales of the year at JST Performance!

** 25% Discount on all Custom Tuning!
** 10% Off of Cobb Accessport and Custom Tune Combos
** 15% Off of all Cobb Parts
** 15% Off of Fortune Auto Coilovers
** Up to 15% Off of XDI Fuel System parts
** Up to $250 Off of BNR and ATP turbo kits and Turbo/ Tune combos
** Up to 20% Off of 100's of parts from other brands on our website as well!

Just put the products in your cart and head to checkout. Discounts will only be visible during checkout!

You can check out more info on our sales at the link below.
https://jst-performance.com/.../2025-black-friday-sales

We will be on standby all day and most of the weekend if anyone has any questions and would like to reach out!