Three Stage Retard Control

Great for nitrous!

PART# 8970

Suggested Retail: $267.95
Your Price:$240.95
Free Shipping on orders over $100*


The Three Stage Retard Control allows you to retard your ignition timing in three different stages. You can activate one retard for a nitrous stage and another at top end in high gear for more mph and still have another module left over for dual stage nitrous systems. When activated together, the retard amounts are cumulative so you get the total of the three. For example, if you pull 2°, then 4° on the second stage and another 2° at top end, the total retard is 8° (2+4+2=8). In addition to the individual retard stages, the Three Stage Retard Control has an optional start retard function that retards the timing 10° or 25° while cranking the engine. The Three Stage Retard Control connects easily to your MSD Ignition and can be triggered from points, electronic ignitions, crank triggers or magnetic pick-up distributors. It is supplied with a 2°, 3° and 4° module and must be used with an MSD 6, SCI, 7, 8 or 10 Series Ignition.


  • Three separate retards
  • Twenty-five degrees start retard


Emission Code3
WarningCalifornia Proposition 65

Tech Resources


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

WARNING FOR 8970: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
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