Save weight with ATI’s new lightweight steel modular trigger shells available in a variety of tooth counts & compatible with Motec, Holley, Haltech, BS3, AEM & other ECUs. These fully CNC-machined, bolt-on trigger shells fit ATI’s 7”, 3-ring dampers, and require a non-serpentine custom aluminum outer shell (Part #916518).
These shells can be ordered & installed on a new damper or retrofitted onto your current 7” ATI Super Damper. If installed on new damper, deduct $100. All trigger wheels are sold without a missing tooth and ATI will deduct $40 if no modifications are required. If your application requires a tooth to be removed, at the time of order, ATI will remove them at whichever degree mark the customer specifies and will rebalance the trigger wheel once the tooth is removed.
Learn more here.
This story was originally published on September 24, 2025. 
