The MSD 8-Plus delivers a dual-fire version of the classic MSD 8 ignition for extreme racers running dual-plug setups. Packed into a smaller housing with improved efficiency and internal components, it adds a built-in 2-Step Rev Control so racers can switch between two rev limits without extra wiring or housings.Specifications: Color: Gold Current Draw: 12 Amps Primary Voltage: 480V Secondary Voltage: 50,000+V Spark Energy: 315-345 mJ per spark Maximum RPM: 15,000 Voltage Required: 12-18V Weight and Size: 4.85 lbs., 8.25L x 3.75W x 5.75H Part Number: 7805 Compatible with 4, 6, and 8-cylinder engines; delivers 36 Amps at 12,000 RPM and 15,000 RPM with 14.4 Volts.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 makes the MSD 8-Plus different from the original MSD 8?It fires two coils at once for dual-plug race setups and adds a built-in 2-Step Rev Control, all in a smaller, more efficient housing.What engines is it compatible with?It's compatible with 4, 6, and 8-cylinder engines.What's the maximum RPM rating?15,000 RPM at 14.4 Volts.Is this part legal for street use?No. It carries MSD Emission Code 4 and is legal for Racing Use Only vehicles, not street-driven emissions-controlled vehicles.{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What makes the MSD 8-Plus different from the original MSD 8?","acceptedAnswer":{"@type":"Answer","text":"It fires two coils at once for dual-plug race setups and adds a built-in 2-Step Rev Control, all in a smaller, more efficient housing."}},{"@type":"Question","name":"What engines is it compatible with?","acceptedAnswer":{"@type":"Answer","text":"It's compatible with 4, 6, and 8-cylinder engines."}},{"@type":"Question","name":"What's the maximum RPM rating?","acceptedAnswer":{"@type":"Answer","text":"15,000 RPM at 14.4 Volts."}},{"@type":"Question","name":"Is this part legal for street use?","acceptedAnswer":{"@type":"Answer","text":"No. It carries MSD Emission Code 4 and is legal for Racing Use Only vehicles, not street-driven emissions-controlled vehicles."}}]}