TSI Diesel and Performance

TSI Diesel and Performance We are located at 2706 North Roan St Johnson City TN
Hours are 9:00 a.m. to 6:00 p.m. Monday to Fri

DIESEL PERFORMANCE AND MAINTENANCE
IMPORT AND DOMESTIC REPAIR AND MAINTENANCE
SPECIALIZING IN DIESEL AND AUTOMOTIVE REPAIR AND MAINTENANCE

WELDING AND FABRICATION OF ALL TYPES OF METALS AND FIBERGLASS
ANY AND ALL OF YOUR CUSTOM OR REPAIR NEEDS

Get ahead of the Spring rush and call us today.
03/04/2026

Get ahead of the Spring rush and call us today.

Spring is here and trucks are coming out of hibernation.

We just opened a limited number of service spots before summer hits.

Right now we’re including a FREE 21-Point Diesel Inspection with any paid service.

If it’s been on your list — let’s get it handled.

📍 Johnson City
📞 423-202-9630

Spring is here and trucks are coming out of hibernation.We just opened a limited number of service spots before summer h...
03/03/2026

Spring is here and trucks are coming out of hibernation.

We just opened a limited number of service spots before summer hits.

Right now we’re including a FREE 21-Point Diesel Inspection with any paid service.

If it’s been on your list — let’s get it handled.

📍 Johnson City
📞 423-202-9630

02/11/2026

We're getting close now! What are you most excited for at Official 2026 Rudy's Spring Truck Jam | April 24th - 25th ?!
👍🏻 - Outlaw Diesel Super Series drag racing🚦
❤️ - Burnout Pad 💨
🤗 - Show n' Shine ✨
or 😂 - Dyno Competition ⛓️‍💥
We've got some exciting sponsor announcements coming your way too. 👀
Rockingham Dragway is the place to be April 24-25. Tickets are available on TheFOAT 🔥

02/11/2026

🔧🚛 DOT ANNUAL INSPECTIONS NOW AVAILABLE 🚛🔧

We’re officially DOT & FMCSA compliant and ready to get your truck or fleet road-legal.

✔️ Certified inspections
✔️ Quick turnaround
✔️ Fleet friendly
✔️ Commercial & diesel vehicles

📍 2706 North Roan St, Johnson City, TN 37601
📞 423-202-9630
🌐 tsi-performance.com

Don’t risk violations or downtime — get inspected by pros who work on diesel every day.

12/15/2025
Another busy day at the shop!!! Call us today for all your automotive, diesel, and performance needs. Big to small we do...
10/07/2025

Another busy day at the shop!!! Call us today for all your automotive, diesel, and performance needs. Big to small we do it all from minor issues to major diagnostics we can take care of you.

10/29/2024

We are offering free 50 point visual inspections also comes with a vehicle health report with any service. Call us today to make an appointment!!!!!

Just wanted to make a post and let everyone know if there is anything anybody needs, please get in touch with us. My per...
09/29/2024

Just wanted to make a post and let everyone know if there is anything anybody needs, please get in touch with us. My personal phone and the shop cell is working fine.Tyler has no cell service. If you need him, try hitting up on facebook. Praying for everybody in need.

Looking to hire diesel techs pay depending on experience level !!!!! Shoot us a message for details !!!!!!
03/12/2024

Looking to hire diesel techs pay depending on experience level !!!!! Shoot us a message for details !!!!!!

01/08/2024

Looking to add another tech shoot us a message for details have a great day!!!!!

Thank you to all our customers!!!!
10/28/2023

Thank you to all our customers!!!!

Address

Johnson City, TN

Opening Hours

Monday 9am - 6pm
Tuesday 9am - 6pm
Wednesday 9am - 6pm
Thursday 9am - 6pm
Friday 9am - 6pm

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