RENNNtech ECU Hand Held Tuner | HHT | for Mercedes S65 AMG | M279 6.0L V12 BiTurbo 2015-2024
RENNtech HHT (Hand Held Tuner) for Mercedes-Benz
Unlock the full potential of your Mercedes-Benz with the RENNtech HHT, a portable and user-friendly solution that allows for unlimited switching between stock and tuned ECU programming. With no ECU removal required, tuning your car has never been this easy or flexible.
Key Features:
Unlimited switching between stock and RENNtech-tuned ECU files.
Plug-and-play via the OBD2 port"”no need for complex installations or ECU removal.
Instant tuning: Programming takes only a few minutes, and the vehicle can be reflashed any time, as many times as you like.
Proprietary tuning software: The module stores both the original stock file and the high-performance RENNtech file.
No compromise on reliability: The tuning delivers a smooth, daily driver experience, backed by decades of ECU tuning expertise.
Performance Gains:
By optimizing air/fuel ratios, adjusting ignition timing, and modifying boost mapping for turbocharged vehicles, the RENNtech ECU software increases power and torque across the entire powerband.
17-Digit VIN is mandatory for programming the RENNtech HHT. Ensure to send this with your order for proper configuration.
Fitment Chart:
Make
Model
Year
Mercedes
S65 AMG Coupe
2015-2024
Mercedes
S65 AMG Convertible
2016-2024
Mercedes
S65 AMG Sedan
2015-2024
Â
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
The AutoHouse Advantage: Global sourcing power paired with specialized expertise. We utilize an expansive supply network of over 600,000 SKUs to deliver world class components with an enthusiast’s precision.
Price Match Guarantee:
We are committed to providing the best value. If you find a lower advertised price from a verified vendor, we will match it. Shop with confidence knowing you’re getting the industry's lowest price.
Fitment Guarantee:
Avoid the headache of the wrong part. If you are unsure about compatibility, contact us first. If we verify the fitment for your vehicle via email and it doesn’t fit, we will handle the exchange at no cost to you.
Authorized Retailer:
AutoHouse Supply is an Authorized Retailer for our premier brand partners. We utilize an extensive wholesale network to ensure all 600k+ SKUs in our catalog are 100% genuine, factory fresh, and sourced through legitimate industry channels.
Warranty Advocacy:
Every product we sell carries its full original manufacturer’s warranty. While warranties are serviced by the brands themselves, we act as your advocate handling technical details to ensure your claim is processed fairly.
Global Reach:
Leveraging our massive supply chain, we secure hard-to-find components that other shops can't access. Whether it's a standard upgrade or a custom exotic application, we have the network to get it to your door.
Building something big? If you’re planning a full overhaul or need a custom quote, reach out to our team via our Contact Page.
Precision Support: Whether you are dialing in a daily driver or sourcing components for a high performance exotic, our team is here to ensure your project stays on track. Use the channels below for sales, technical assistance, or order updates.
Direct Consultation:
For sales inquiries, help applying Project Incentives, or immediate assistance with a new order: (828) 588-5888 Monday – Friday | 9am – 5pm EST
Technical & Fitment:
To qualify for our Fitment Guarantee, please email your vehicle’s Year, Make, Model, and any existing modifications to: support@autohousesupply.com Our experts will review your specifications and provide written confirmation for your build.
Order Inquiries:
For tracking updates or status inquiries on existing orders, please reach out via our Contact Form. Having your order number ready will allow us to provide the most efficient update.
Global Inquiries:
We proudly support builds across the US, Canada, Mexico, and worldwide. For international shipping quotes or oversized freight logistics, please contact us via the email link above.
Need an immediate answer? Our Live Chat feature (available in the bottom corner) is the fastest way to connect with a representative during business hours.
At AutoHouse Supply, we are enthusiasts first. Our goal is to provide a seamless logistical experience so you can focus on your build. Please see our standard guidelines below.
Secure Shipping:
We offer FREE Ground Shipping within the 48 contiguous United States. Most in stock orders process within 48 hours. For your security, high value performance parts require a signature upon delivery to ensure they reach you safely.
Transit Protection:
Please inspect your order immediately. Damage must be reported within 48 hours. For freight/LTL items, if you cannot inspect the contents immediately, please write "Subject to Inspection" on the delivery receipt before signing.
Flexible Returns:
Unused items in brand new, original packaging can be returned within 30 days. While standard refunds incur a 25% restocking fee, we will waive this fee entirely if you choose store credit or an exchange for your next upgrade.
Exclusions:
To ensure every customer receives brand new, untampered components, parts that have been installed, modified, or used are non returnable. Custom builds, special orders, and wheel/tire packages are considered final sale.
Need assistance? Reach out via our Contact Form before shipping any items back so we can provide you with an RMA number.
Fitment Guarantee
Fitment guides and tools are helpful, but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double check for you. We take the guesswork out of your purchase by standing behind our expertise.
Verify Your Build:
If this product doesn't list your specific vehicle data, simply reach out to support@autohousesupply.com. We will manually verify compatibility for you.
Our Promise:
When we confirm a fitment in writing and it doesn’t work for your application, we cover the return shipping and exchange it at no cost to you.
Questions? Send us your Year, Make, and Model via our Contact Form and we’ll get you a definitive answer so you can buy with confidence.
Authorized Retailer
Genuine parts at the industry's best prices.
Price Match Guarantee
Found a lower advertised price? We'll match it.
Worldwide Shipping
We ship globally with package consolidation available.
Expert Parts Support
Need help finding the right part? Our team is here to help
