Description:
RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal. RennTech 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.
RennTech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s. RennTech 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.
RennTech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.
With the proprietary RENNtech ECU Tuning the X253 - GLC 43 AMG SUV gains up to +25 HP and +42 LB-FT, based on power numbers measured by RENNtech. Please note that the Mercedes M276 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU Upgrade for the X253 - GLC 43 AMG SUV is 400 HP and 440 LB-FT.
All RennTech HSMs are adjustable via USB using either Windows or Android OS.The software allows the user to adjust the ride-height at each corner in 1mm increments independently. The software also has three locations where the user can store pre-configured suspension setups for quick changes.
Attention:
Mercedes M276 engine performance when measured, obtains higher numbers than rated from factory.
Power gains are calculated with stock numbers measured by RENNtech
Crank Performance Numbers are calculated with a 17% Drivetrain loss on 4MATIC vehicles.
Our numbers will be dependend on conditions and fuel quality. 91+ Octane gasoline is mandatory with this Performance Package.
Features:
- Gains:Â +25 HP and +42 LB-FT
- Long-lasting and driver reliability
- Significant gains in horsepower
- Increases the performance
- Significant gains torqueÂ
- Increasing the engine's rev limiter
- Incredible performance gains
Stock Performance:
- 362Â HP @ 5,500-6,000 RPM;Â 384Â LB-FT @ 1,8000-4,000 RPM
- 375 HP @ 5,600 RPM; 398 LB-FT @ 3,300-3,600 RPM
Modified Performance:
- 400Â HP @ 5,450 RPM;Â 440Â LB-FT @ 3,250-3,600 RPM
Vehicle Fitment:Â Â Â
- 2016Â Mercedes-Benz X253 GLC 43 AMG
- 2017Â Mercedes-Benz X253 GLC 43 AMG
- 2018Â Mercedes-Benz X253 GLC 43 AMG
- 2019Â Mercedes-Benz X253 GLC 43 AMG
- 2020 Mercedes-Benz X253 GLC 43 AMG
Note:
Images are for representation purpose only and may differ depending on application.
⚠️ 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.
|
|
Project Incentives:
|
We reward enthusiasts who trust us with their major projects. Use these tiered codes at checkout to apply instant savings to your order:
• AH25 — $25 OFF $500+ | • AH60 — $60 OFF $1000+
• AH180 — $180 OFF $3000+ | • AH400 — $400 OFF $6000+
• AH630 — $630 OFF $9000+
|
|
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.
|
|
Secure Logistics:
|
High-value performance parts deserve high-level security. We utilize fully encrypted, PCI-compliant checkout and premium, insured carriers to ensure your investment is protected from the moment you click 'Order' until it’s in your hands.
|
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.
