Horses mouth:

"Top Fuel Zero1000 Full Auto Turbo Timer is offered in a new slim and sleek deisign that makes mounting this turbo timer in your cabin a snap. Similar to the popular A'Pexi turbo timer, Top Fuel offers Air/Fuel reading off your factory O2. This is a very high quality unit at a very affordable price. This turbo timer works with popular turbo timer harness from GReddy, Blitz, HKS, and will also work with FRS own turbo timer harness found here. Turbo timer often helps prolong the life of your turbo by leaving your motor on for a limited duration so that the oil and coolant flows through the turbo during idling to cool it down. Highly recommended for all turbocharged vehicles."