The MSD Powersports Launch Master is a universal low RPM limiter that provides consistent launches and quicker 60-foot times by setting an RPM limit to stage with. Once the green light comes on, release the clutch and take off. The RPM limit is adjusted with two built-in rotary dials.
Specifications:
- Category: Ignition
- Product Type: Controller
- Warranty: Manufacturer's Limited 1 Year Warranty
- Part Number: 4350
Designed for Coil-on-Plug 4-Cylinder engines. Not for Harley-Davidson engines.
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).
FAQ
What does the Launch Master do?
It's a universal low RPM limiter that sets an RPM limit to stage with, helping produce consistent launches and quicker 60-foot times.
What engines is it compatible with?
Coil-on-Plug 4-cylinder engines; it is not for Harley-Davidson engines.
How is the RPM limit adjusted?
With two built-in rotary dials.
Is this legal for street use?
No. 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).

