Are there any 160 degree thermostats available for the Cobra?
Actually, it appears that Lightning thermostats fit both the Cobra and Lightning. Hypertech produces a 160 and 170 degree thermostat, and Stant has a 170 and 180 degree thermostat available. Note that adding coolant back in after replacing the thermostat can be difficult, see 2.2.13.4 for more information.