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 1980s! 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.
G 550 (W463) Stock Performance:
382 HP @ 6000 RPM; 391 LB-FT @ 2800-4800 RPM
Modified Performance:
402 HP @ 6000 RPM; 405 LB-FT @ 2800 RPM
Gains:
+20 HP / +14 LB-FT
All-In Pricing Notice:
Total Price Shown No Hidden Fees
Includes Shipping to Your Door
What You See is What You Pay
Some restrictions may apply depending on your location or delivery conditions.
IMPORTANT:
Programmable electronic devices are non-returnable and non-refundable. No refunds or returns will be accepted.
Notes:
This part may be considered a Special Order if custom-made, low volume, or not something we generally stock. There may be a cost for Air Freight, Customs, Taxes, and Duties. Your card will not be charged during Checkout; only an Authorization will be obtained. If necessary, we will contact you with details before processing the order. Please review our
Terms & Conditions
before ordering.