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Buy 3 Select Tires, Get the 4th Free Instantly
Buy 3 Tires, Get 4th Tire Free Instantly. Receive a discount equal to the price of a single tire when four tires are added to the cart. Valid on select in stock tires only. Those tires for which discount is available will be identified in search results & product detail pages. All other tires and special order tires are excluded from this offer. Valid when scheduled for installation on PepBoys.com and installation is completed between 5/19/16 through 5/25/16.


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Showing  MSD Module selector two step 
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MSD Module selector two step

Part # 8739   SKU: 9955718
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Price
$80.99 / ea
Quantity
$80.99
Subtotal
$80.99
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MSD Module selector two step

The MSD Module Selectors allow you to choose two or three different rpm limits that can be activated at different times. With this ability, the possibilities are endless. As an example, we'll use a drag car with a Three Step Module Selector plugged into the rpm socket of a 7AL-2 Ignition. The different rpm modules are activated when 12 volts are applied to a corresponding wire. By connecting one wire to the line-lock circuit, one module will be activated during the burnout. This helps keep tire temperatures consistent. When the line-lock button is released, the limit turns off. When you're on the starting line, you can activate the second limit through the clutch or trans switch. This provides a steady and consistent rpm for firm holeshots every time. When no modules are selected, the remaining high limit is active to protect the engine in the event of driveline failure. The Two Step works the same, but only with two different limits.The Module Selectors can also be used with an MSD Timing Control. By plugging the Selector into a retard module socket, you can activate different retard amounts at select times. This is a great feature for engines being upgraded to a multi-stage nitrous system. With the addition of an RPM Activated Switch, you can use the Two Step to activate a shift light at different rpm.The Module Selectors must be used with an MSD Soft Touch Rev Control or a Timing Controller with a high-speed retard module. No rpm or retard modules are supplied.
  • Allows a launch rev limiter and a high speed rev limiter
  • Must use RPM modules to set limits, sold separately
  • Note these module selectors must be used with an MSD soft touch rev control or a timing controller with a high-speed retard module

Whats Included

Module Control and hardware, note RPM modules sold separately


Includes Launch Rev Limiter
Yes
Works Soft touch Rev Controls
Yes
Quantity
1
Adjustable RPM
Yes Modules sold separately
Color/Finish
Black and Silver
Module Selector Material
Plastic
Adjustable RPM
Yes Modules sold separately
Includes Burn Out Rev Limiter
No
Includes Overrev Protection
Yes
RPM Module Control Range
Varies depending on the modules sold separately

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