Find Dyno Tuning Services in Port Byron, IL

Ask us about our truck fabrications and upgrades

Thank you for visiting the website of Larssen's Diesel Performance & Repair. We are proud to serve the Port Byron, IL area. Email us with any questions or comments, or call 563-424-5701 to learn more about our custom tuning shop.

Please use the form on this page to email us.

  • Larssen's Diesel Performance & Repair

    3530 214th Street North
    Port Byron, IL 61275

    GET DIRECTIONS


    Call Us
    Phone: (563) 424-5701

    Hours
    Mon: 8:30AM-5:30PM
    Tue: 8:30AM-5:30PM
    Wed: 8:30AM-5:30PM
    Thu: 8:30AM-5:30PM
    Fri: 8:30AM-5:30PM
    Sat: Closed
    Sun: Closed

Contact Us Now