Built for late-model Ford modular 4.6L/5.4L engines (1999 and up), this 2-Step connects to the factory coils to set an rpm limit for staging, delivering consistent launches and quicker 60-foot times. Two rotary dials adjust the rpm from 1,000-10,900 rpm in 100 rpm increments, and an LED shows when the launch limit is active.Specifications: Category: Ignition Part Type: Engine Ignition RPM Governor Product Type: RPM Control Sub Category: Secondary Ignition Fits 4.6L/5.4L Modular Ford engines, 1999 and up RPM range: 1,000-10,900 rpm, adjustable in 100 rpm increments LED indicator shows when the launch rev limit is active For 4V Coyote engines (2011+), use PN 8731 instead Part Number: 8734 Compliance: This part is legal for sale and use on Racing Use Only Vehicles — competition vehicles that are not registered and never operated on the street. It is against the law to install this part on an Emissions Controlled Vehicle (1966-and-newer California-certified or 1968-and-newer federally certified vehicles).FAQWhat Ford engines does the 8734 fit?It fits 4.6L/5.4L Modular Ford engines from 1999 and up.Does this fit 4V Coyote engines?No, for 4V Coyote engines (2011 and newer), MSD PN 8731 should be used instead.How is the launch rpm adjusted?Two rotary dials set the rpm from 1,000 to 10,900 rpm in 100 rpm increments.Is this part legal for street use?No, it's legal for Racing Use Only vehicles and may not be installed on emissions-controlled street vehicles.{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What Ford engines does the 8734 fit?","acceptedAnswer":{"@type":"Answer","text":"It fits 4.6L/5.4L Modular Ford engines from 1999 and up."}},{"@type":"Question","name":"Does this fit 4V Coyote engines?","acceptedAnswer":{"@type":"Answer","text":"No, for 4V Coyote engines (2011 and newer), MSD PN 8731 should be used instead."}},{"@type":"Question","name":"How is the launch rpm adjusted?","acceptedAnswer":{"@type":"Answer","text":"Two rotary dials set the rpm from 1,000 to 10,900 rpm in 100 rpm increments."}},{"@type":"Question","name":"Is this part legal for street use?","acceptedAnswer":{"@type":"Answer","text":"No, it's legal for Racing Use Only vehicles and may not be installed on emissions-controlled street vehicles."}}]}
