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4L L4 (3B) 01/93-99
Note: Due to the use of unknown additives in some fuels
2006 GMC SIERRA 3500 6
Designed for maximum output from idle to high rpm
When converting from the mechanical cable to a drive by wire system
MSD7720 - Power Grid 7 Ignition Control Digital Captive Discharge 4L L4 (3B) 01/93-99MSD7720 Power Grid 7 Ignition Control Digital Captive Discharge MSD set the standard in programmable ignition systems. In fact, every NHRA Pro Stock championship in the last few years has been with an MSD Programmable 7. Drag radial, twin turbo outlaw cars and 10. 5 tire classes all rely on the advanced programming of MSD's Programmable 7 Ignitions. The Power Grid Ignition System is the next evolution of our Programmable 7 Series Ignition Controls.
