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New Product announcement: Closed Deck X4

Our most feature-filled Atmega-powered ECU, housed in an aluminum case with locking main harness connectors and USB-C connectivity. It offers more than twice the ready-to-use customizable pins than any previous design.


Formerly: DetonationEMS: We are currently undergoing a rebranding initiative and DetonationEMS is now known as OpenLogicEFI. We want to emphasize that this change is limited to our name; the ownership and our unwavering commitment to providing excellent open-source products remain unchanged. As we transition, links may redirect between both DetonationEMS.com and OpenLogicEFI.com websites. Thank you for your continued support during this exciting phase of our journey.

Conditions Of Use:

E.P.A. Federal Regulations, California (CARB), other states and governing authorities prohibit sale or use of some aftermarket parts, including those that tamper with, modify or defeat emission systems in any vehicle 1966 and newer. OpenLogicEFI prohibits the use of it's products on emission controlled vehicles. All parts are sold for OFF-ROAD, RACE-ONLY, GROUND-VEHICLE USE PROPOSES ONLY.

OFF ROAD USE NOTICE: Products sold through OpenLogicEFI including tuning products may be designed for off-road/race use only, and are not applicable for vehicles in states that require pollution controlled vehicles. E.P.A. Federal Regulations, California (CARB), other states and governing authorities prohibit sale or use of some aftermarket parts, including those that tamper with, modify or defeat emission systems in any vehicle 1966 and newer.

OpenLogicEFI prohibits the use of these products on emission controlled vehicles. All products sold by OpenLogicEFI are sold for OFF ROAD, RACE-ONLY, ground-vehicle use only in a controlled environment. OpenLogicEFI does not implicitly or explicitly confirm the legality of using any products it sells on public roads. Customers are solely responsible for ensuring all products purchased are used in a legal manner.