INSTALLATION INSTRUCTIONS Owl worked directly with Renntech's engineers to develop this proprietary piggyback tuner, which offers significant gains in power and torque without sacrificing daily driver reliability. This maximizes the Sprinter’s ability to transport large cargo or tow large loads without degrading performance. The RENNtech Power upgrade is contained in a CNC machined 6061 aluminum enclosure with pre-labeled wires and connectors. The RPM module comes with a bypass that can be installed in place of the module to turn the vehicle back to stock performance quickly (this does not mean the tuner is undetectable). The harness can be uninstalled to return the vehicle to stock. Through our 30+ years of ECU tuning experience, countless hours of in-house research, development and long-term testing ensure that our ECU upgrade offers the best in quality, performance and reliability. MUST PROVIDE VIN OF VEHICLE Please send to Moto@owlvans.com Product Highlights: Fits: Sprinters AWD + 2WD 4 cyl Deisel motor (2023-Present Chasis) Add 30hp and 30lbs of torque Piggyback Tuner Designed to be CARB compliant and maintain all emissions systems on the van. Increases power through efficiency and boost without sacrificing environmental concerns.  Works with Pedal Box and Pedal Control 2.0 Drops 3 seconds off the 0-60 time Pedal Control: The Renntech tune adds actual HP and Torque, the Pedal Control makes the vehicle more responsive. Both work well in concert to offer the maximum performance upgrade for an AWD Sprinter. CARB and EPA Certification: Unlike most tunes, Owl and Renntech have chosen to go through the lengthy and expensive process of getting our tuner CARB (California Air Resource Board) and EPA certified. This means the tune is legal for sale and use in all states. We are currently in this process and hope to have full approval soon. This has no impact on the quality of the tune but instead has to do with not negatively impacting emissions for a vehicle.  Disclaimer: Owl has sold and installed thousands of Renntech Engine tunes on Sprinters. We chose to sell Renntech due to its long-standing history of reliability and knowledge of the Mercedes platform. However, it is important to understand that anytime you modify your vehicle from stock, you are making those modifications at your own discretion. The tune may affect the warranty of specific aspects of your vehicle, including your engine and drivetrain. This is at the dealer's discretion. If you are concerned, this piggyback tuner should be removed anytime you go in for service so that Mercedes can properly communicate with your vehicle for any software updates. Additionally, Mercedes may be able to detect the tune (even after removal). You are tuning at your own risk.