These RPM-Activated Switches will perform a variety of different functions from turning on a bulb or solenoid to activating an MSD Timing Control at a desired rpm.

The RPM Window Switch, PN 8956, has two rpm adjustments; one to activate a circuit, while the other deactivates the same circuit. This Switch will supply then remove ground to a circuit. This is a great feature to deactivate nitrous before the engine's rev limit is reached. Both Switches can be used with stock inductive ignitions or an MSD Ignition and can handle up to 1.5 amps. No rpm modules are supplied.

2 RPM Adjustments
Activate a circuit
Deactivate a circuit

Information:

Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations

Attributes
ASIN	B00029JMMG
Brand	MSD, MSD
California Proposition 65	WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Category	Ignition, Air and Fuel Delivery
Country of Origin (Primary)	US
Emission Code	5, 5
GTIN	00085132089567
Harmonized Tariff Code (Schedule B)	8536509065
Hazardous Material Code	N
Life Cycle Status Code	Available to Order
NAFTA Preference Criterion Code	B
Product Type	RPM Switch, RPM Switch
SDR Required Flag	N
Series	RPM Accessories
Sub Category	Fuel Injection System and Related Components
Subcategory	Racing Electronics
Warning	California Proposition 65, California Proposition 65
Warranty	Limited 1 Year Warranty, Manufacturer's Limited 1 Year Warranty
Warranty Time	12
part type	Engine RPM Limiter