Davis Unified Ignition Dyna-Mod Module - 4 Pin Doug's Headers Includes mounting bolts & washers

Includes mounting bolts & washers as well

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Davis Unified Ignition Dyna-Mod Module - 4 Pin Doug's Headers Includes mounting bolts & washersHigh Performance 4 Pin Dyna Module All V8, 6 Cylinder and 4 Cylinder engines utilizing our DUI Distributor or GM HEI Distributor Non Computer Controlled For a crisper, smoother running engine, replace your stock HEI module with the Dyna Mod. The Dyna Mod has more "electronic dwell" in it to provide more coil saturation time. The additional saturation time allows the coil to produce a more intense spark. Our Street Strip and Racing D. U. I.