{"product_id":"msd-8737","title":"Three Step Module Selector","description":"\u003cp\u003eAs an example, we'll use a drag car with a Three Step Module Selec­tor plugged into the rpm socket of a 7AL-2 Ignition. The different rpm modules are activated when 12 volts are applied to a corresponding wire. By connecting one wire to the line-lock circuit, one module will be activated during the burnout. This helps keep tire temperatures consistent. When the line-lock button is released, the limit turns off. When you're on the starting line, you can activate the second limit through the clutch or trans switch. This provides a steady and consis­tent rpm for firm holeshots every time. When no modules are selected, the remaining high limit is active to protect the engine in the event of driveline failure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures \u0026amp; Benefits\u003c\/strong\u003e\u003cbr\u003eBurnout rev limiter\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e The MSD Module Selectors allow you to choose two or three dif­ferent rpm limits that can be activated at different times.\u003c\/p\u003e","brand":"MSD","offers":[{"title":"Default Title","offer_id":44472437669953,"sku":"8737","price":224.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/2500\/9217\/files\/8737_01.jpg?v=1787649645","url":"https:\/\/www.theefistore.com\/products\/msd-8737","provider":"The EFI Store","version":"1.0","type":"link"}