MSD 7805 8-Plus Ignition Control, 4-, 6- and 8-Cyl Engines


  • 4-, 6- and 8-cyl engines
  • Extreme spark output
  • Built-in 2-step rev control
  • Single or dual coil output
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SKU: MSD7805 Category:

There has always been a niche group of hardcore racers and pullers that run nothing but the MSD 8 Ignition Series. If you liked it then, you’re going to like it even better now!

The MSD 8-Plus Ignition produces the same extreme output of the original 8-Series, yet is now in a smaller housing with improved efficiency and internal components. One distinct change is now a built-in 2-Step Rev Control. Now you can switch between two rev limits without extra wiring or housings.

For those that are looking for a dual fire MSD 8, the new 8-Plus is all you need. Our engineers were able to deliver an ignition that is capable of firing two coils at once for those extreme racers using dual plug race setups.


  • Extreme spark output
  • Built-in 2-step rev control
  • Compatible for 4, 6 and 8-cylinders
  • Single or dual coil output
Weight 8.78 lbs
Dimensions 10 × 8 × 7 in




Not CARB Compliant

Manufacturer Part Number


MSD 8-Plus Ignition Control

4-, 6- and 8-Cyl Engines

If you’re running alcohol and high compression and/or a turbo/blower this one can ignite it all.

Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to