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The ultimate ECU upgrade that offers significant gains in both power and torque without sacrificing daily driver reliability. Maximizes the ability to transport large cargo or tow large loads without degrading performance.
 
Unlock your Sprinter's full potential with the RennTech HHT Engine Tuner. Built for the 3.0L V6 diesel engine (2007-2022), this plug-and-play performance module delivers a dramatic boost in torque and horsepower, without compromising reliability.
Developed in partnership with factory-trained Mercedes engineers, the HHT Tuner optimizes engine maps for smoother throttle response and more usable power across the RPM range. Whether you're climbing mountain passes or merging onto the freeway with a fully loaded van, you'll notice the difference.
This isn't a gimmick. It's a refined performance upgrade trusted by enthusiasts and professionals who demand more from their drivetrain.
 
Sprinter V6 Engine 2007-2022: Adds up to 69 HP and 104 lb-ft of torque
Typical install takes about 2 mins
Can revert back to stock quickly and easily - Required before taking the van to Mercedes-Benz for software updates.  The tuner is a piggyback tuner to the main vehicle software.
Works with Pedal Box and Pedal Control 2.0
 
Note: Users at high altitudes can experience PRM pulsing under full acceleration. The tune will still add power and the pulsing is not problematic.
Note: No returns on Renntech Tuners. Any increased wear, cost, emissions equipment is the responsibility of the purchaser.