FREE SHIPPING & HANDLING!*
Order by 11 PM EST
for Same Day Shipping!
MSD Dual Ignition Adapter
Product images may differ from actual product appearance.
In some instances when you install an MSD ignition, the factory ECU may not be able to distinguish when the coil fires. This is the signal which is also responsible for firing the injectors (or the tachometer), which may cause a no-run situation. The Dual Channel Ignition Adapter simulates the original coil trigger signal thus allowing the ECU to properly trigger both the tach and fuel injection with the MSD DIS ignition installed. In most cases, the adapter plugs directly plugs into the MSD's Harness. For vehicles using an MSD DIS-2 Ignition, only one 121-8912 is required. For DIS-4 applications, two 121-8912's are required.
Over 50 years of experience delivering the best in High Performance Auto parts. JEGS has the knowledge and technical support staff along with 100% satisfaction guarantee. Our warehouse is filled with millions of name brand parts ready for same day shipping.
What You Want - When You Want It - At the Price You Want to Pay