Back to Top

    Support and Information


    Sales Hours: Monday - Friday 8:00am - 5:00pm PST

    North America: 1 (877) WEISTEC (934-7832) - Option 1
    International: (714) 202-0005

    Fax: (888) 516-8219

    Sales Department:

    Address: 1266 N. La Loma Cir, Anaheim, CA 92806


    Technical Support

    Support Hours: Monday - Friday 9:00am - 4:00pm PST

    Technical Support by Email: To request technical support on Weistec products and services please email  A help ticket will be automatically generated.  Tickets are addressed in order received.  Typically, if a ticket is created during support hours, there will be a response within an hour.

    Installation Manuals

    How to find your Weistec installation guide


    Knowledge Base

    Computer Tuning Process: How do I get my computer tuned?

    Crank vs Wheel Horsepower

    Why Twin-Screw

    Weistec Turbo Upgrade FAQ

    Weistec Flash Tool


    Warranty and Forms

    Weistec prides itself in delivering high quality, dependable products. We stand behind those products, and our customers who use them. Make sure to register your warranty after any Weistec Purchase!

    Weistec Warranty Registration

    Weistec Limited Warranty

    Magnuson-Moss Warranty Act

    M113K Calibration Request Form

    M133 Calibration Request Form

    M156 Calibration Request Form

    M157 Calibration Request Form

    M159 Calibration Request Form

    M177 Calibration Request Form

    M178 Calibration Request Form

    M278 Calibration Request Form

    M274 Calibration Request Form

    M276 Calibration Request Form


    Frequently Asked Questions

    1. How often do I need to change the oil in the supercharger and where do I purchase the oil from?

    2. Do I add anti-freeze coolant to the supercharger intercooler system?

    3. How much horsepower will my AMG 63 Mercedes make with the Weistec Supercharger?

    4. What kind of fuel should I be using?

    5. Do headers and exhaust aid in power gains with the supercharger?

    6. How does the Weistec supercharger increase engine performance?

    7. Can I have a third party company tune my supercharged Mercedes?

    8. Does Weistec Engineering provide a warranty with their system?

    9. How long does it take to install a supercharger system?

    10. Is the Weistec supercharger intercooled?

    11. Why do boost levels vary in different configurations?

    12. What advantage does a Weistec supercharger have over other modifications?


    Weistec Dealer / Installer Program

    Weistec Engineering invites qualified companies in major markets internationally to join our team as distributors and/or installers of products from the Weistec product line. Innovations developed from engineering and design make Weistec products a top notch shelf item.

    Click Here for more details