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 1980's. 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 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.
With the proprietary RennTech ECU Plus Upgrade the R172 - SLC 43 AMG gains up to +41 HP and +62 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 Plus Upgrade for the R172 - SLC 43 AMG is 416 HP and 460 LB-FT.
Attention:
Mercedes M276 engine performance when measured, obtains higher numbers than rated from factory
Power gains are calculated with stock numbers measured by RennTechÂ
Crank Performance Numbers are calculated with a 14% Drivetrain loss on RWD vehicles.
RennTech numbers will be dependend on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Package.
Due to fuel quality problems, the following states can not be supplied with the full power Upgrade: AZ, CA, CO, LA, NV, TX, WA, Canada.
Features:
- Gains: +41 HP and +62 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 @ 2,000-4,200 RPM
- 375Â HP @ 5,600 RPM;Â 398Â LB-FT @ 3,300-3,600 RPM
Modified Performance:
- Â 416Â HP @ 5,450 RPM;Â 460Â LB-FT @ 3,250-3,600 RPM
Performance Graph:
Vehicle Fitment:Â Â Â
- 2016 Mercedes-Benz R172Â SLC 43 AMG
- 2017 Mercedes-Benz R172Â SLC 43 AMG
- 2018 Mercedes-Benz R172Â SLC 43 AMG
- 2019Â Mercedes-Benz R172Â SLC 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.
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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.
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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.
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Flexible Returns:
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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.
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Exclusions:
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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.
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