Contact Us

The easiest and quickest way to contact us is via email at or use the Chat option at the bottom of our website. Our sales and/or tuning team will usually respond within 12-24 hours.

We are often working on customer vehicles, traveling and/or testing at the racetrack, which makes it hard for us take phone calls on a daily basis. Please email us at the above email address if you need to discuss your build, product details, have questions about inventory status, or if you have an issue with any orders.

Check out our Facebook Page at the following address, where you can also send us a Private Message at the PM link below: (Note that we only respond during business hours and will only respond on 1 contact platform, please do not send multiple messages to multiple platforms expecting a quicker response - Email messages usually take priority over social media messages)


Find us on Instagram: @jst_performance (we do not respond to IG messages, so be sure to email us if you have any questions)