Overview The FISH Tuning SGM Bypass Cable is a must-have for any 2018 6.7L Cummins. It allows you to bypass the factory Security Gateway Module (SGM) that Ram added to 2018-and-newer trucks, restoring full tuning and diagnostic access through the OBD-II port. Built to work across multiple tuning platforms, it's the key that unlocks your Cummins for custom tuning. REQUIRED FOR TUNINGTuning a 2018 6.7L Cummins? You Can't Do It Without This Cable. Ram's Security Gateway Module locks down the OBD-II port on all 2018 trucks, blocking tuners from writing to the ECM. This cable bypasses the SGM so you can flash and tune freely. We also offer the complete tuning solution: EZ LYNK Auto Agent devices paired with AMDP tuning files — message us to bundle the device, tune files, and this cable for a reliable, ready-to-go setup on your 6.7L Cummins. Key FeaturesBypasses the factory Security Gateway Module (SGM) on 2018 RamsRestores full tuning and flashing access through the OBD-II portOBD-II port continues to function normally after installationCompatible with EFI Live, CSP5, and other supported tuning platformsWorks in multiple ways across multiple platformsSimple plug-in design — no cutting or splicing requiredCompatibilityEngine6.7L Cummins Turbo DieselYear Range2018–2024 Dodge / RamFunctionSecurity Gateway Module (SGM) BypassTuning PlatformsEFI Live, CSP5, and other supported devicesRecommended SetupEZ LYNK Auto Agent AMDP Tuning Files (available from us)Important NotesOff-Road Use Only: The products sold on this website are intended for off-road use only and may not be legal for use on public highways where pollution control laws apply. Check Local Laws: Before purchasing and installing any of these parts, please verify your local and state laws to confirm whether such modifications are legal in your area. Professional Installation Recommended: These kits and parts should be installed by professional mechanics only. Improper installation may lead to performance issues or vehicle damage. Unless otherwise specified on the product page, our parts do not include installation instructions and are intended for individuals with a solid understanding of mechanical systems and procedures. As with many aftermarket parts that fit a range of vehicles, minor adjustments or modifications may be required during installation. We cannot accept returns or offer refunds based on an inability to complete installation due to the absence of instructions. Warranty: Use of these parts may void your vehicle's warranty. Please confirm with your vehicle manufacturer before purchase and installation. No Liability: Suncentauto is not responsible for any damage or issues that may arise from the use of these parts. Product Images: Product images are for illustrative purposes only and may differ from the actual product due to manufacturer design changes or improvements. No Performance Guarantees: While these parts are designed to enhance vehicle performance, no guarantees are made regarding the specific performance gains that will be achieved. Read More
