Adds 117 hp and 225 lb-ft torque for significant performance boost
Six adjustable power levels with real-time on-the-fly tuning for optimal engine health
iDash Pro Powertrain Information Center with Bluetooth for advanced monitoring and app control
Activesafety circuitry protects engine and transmission from internal failure
No-reflash required and no trace left in ECM after removal for easy installation and removal
Derringer® High Output adds +117 hp +225 lb-ft with 6 safe power levels adjustable on-the-fly. Communicates with the truck's ECM to adjust the tune in real-time, even compensating for altitude. ActiveSafety circuitry protects the engine and transmission. Controlled by the new iDash Pro® Powertrain Information Center with Bluetooth mobile
Compatible Vehicles
2020-2022 Chevy/GMC 2500/3500 6.6L Duramax, L5P
Power Increase
+117 hp, +225 lb-ft torque
Power Levels
6 adjustable, with best gain of +117 hp
Connectivity
OBD II, Bluetooth (iDash Pro)
Item Condition
New
Manufacturer Type
Aftermarket
4.6
20 ratings
5
4
3
2
1
Money well spent
P
Patrick · 3 days ago
Derringer high output and pedal monster
Was super easy to install and definitely woke up my L5P! One thing I did different on the Install with the I dash pro was drill the hole in the Windshield pillar for the wiringin a different spot so that I can reuse my factory cover if I wanted to remove it.
M
Mark · September 12, 2026
best kit I've ever ordered
For anything. Anywhere. Instructions were clear, step by step, were actually doing the job I was doing not "similar job on different vehicle". Everything I needed was included in the kit, parts are high quality - I have never in 35 years of spinning wrenches seen a better packaged "you will not have any questions" solution than this. This should be the standard the entire world operates on.