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tuning

  • RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!

    Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.

    The RENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.

    RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.

    *Note:

    • 17-Digit VIN Number of vehicle is mandatory in order to program RENNtech HHT. Please send with order.
    • Please select applicable Octane/Fuel rating used in your vehicle/region at checkout.

    Available for:

  • RENNtech Extended Protection Plan

     

    RENNtech Extended Protection Plan Eliminates Factory Warranty Worries after Performance Tuning

     

    RENNtech Mercedes, AMG, Aston Martin, and Sprinter tuning enthusiasts protect their investment with our Extended Protection Plan, and don’t worry that a dealer may deny factory warranty claims due to RENNtech performance upgrades. This transferrable, comprehensive service contract covers powertrain repairs for the duration of the factory 48-month/50,000-mile warranty after installation of our HHT, Stage I Turbo, or Stage II Turbo if Mercedes-Benz USA or its dealer denies warranty repairs due to these aftermarket modifications.*

     

    Save money by purchasing a RENNtech Extended Protection Plan during the first 30 days of product purchase. You may purchase a plan later, but there will be a surcharge. The RENNtech Extended Protection Plan is only available for select Mercedes-Benz, Sprinter, and Aston Martin models. See if your vehicle qualifies and get a personalized quote now.

     

     GET QUOTE

     

    Does installation of RENNtech aftermarket parts and performance tuning void a factory warranty?

     

    RENNtech is the tuning choice of Mercedes-Benz Dealerships who install and service our products, and work with RENNtech directly should the need for warranty service arise. We're so confident in the quality of our RENNtech products that they come with a 24-month Limited Product Warranty that guarantees our products are free of defects in material and workmanship and covers repair or replacement of the part.**

     

    While the Magnuson-Moss Warranty Act is meant to protect consumers, it is not a guarantee that any auto manufacturer or dealer honors your factory warranty. There are reported instances of auto manufacturers stating that tuning and aftermarket parts void the factory warranty and flagging the vehicle on the entire system of its dealers' computers to deny warranty repairs to the powertrain. Disputes are a time-consuming hassle and often require an attorney to compel manufacturer compliance.

     

    That is why selecting a reputable company, with quality parts you trust, to install upgrades and service your Mercedes-Benz, AMG, Aston Martin, or Sprinter is essential when choosing an aftermarket tuner. Performance enthusiasts with a RENNtech HHT, Stage I Turbo, or Stage II Turbo and our Extended Protection Plan are not at the mercy of the manufacturer’s warranty repair determination.

     

    The RENNtech Extended Protection Plan is only available with the purchase of RENNtech products and allows you to focus on performance, while we handle protection.

     

    Choose RENNtech for your Mercedes-Benz tuning, not just any tuning shop.

     

    RENNtech tuning is the #1 choice of Mercedes-Benz enthusiasts.

     

    Founded in 1989, RENNtech is the foremost authority on performance tuning and customizing AMGs and Mercedes-Benz. We design, engineer, and manufacture our proprietary line of tuning products in-house at our facility, which features a fully equipped fabrication and machine shop with CNC and rapid prototyping capabilities, in-house performance dynos, complete engine management and software tuning capabilities, alongside a state-of-the-art service/repair/installation facility with a full-time design, engineering, and sales staff.

     

    We designed our products to work in complete harmony with factory equipment. Our tuning software does not override or negate any safety features built into the ECU. That ensures you gain mind-blowing performance without sacrificing daily driver comfort or reliability.

     

    The RENNtech Extended Protection Plan protects your investment and gives you the peace of mind to achieve your vehicle's performance potential without the worry of Mercedes-Benz USA or its dealer denying a factory warranty claim simply due to performance upgrades. Performance without compromise. Only from RENNtech.

     

    GET QUOTE

     

     * Get a quote to see complete RENNtech Extended Protection Plan Terms and Conditions

    ** See Limited Product Warranty Terms and Conditions for complete details.

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Contact us

 
7825 SW Ellipse Way, Stuart, FL 34997
 
(+1) 561 - 845 7888
 
 
Mon - Fri 9am - 6pm

 

© 2017 RENNtech, Inc. All Rights Reserved.
7825 SW Ellipse Way - Stuart, FL 34997
TEL: 561.845.7888 FAX: 561.845.6777 E-MAIL: info@renntechmercedes.com