A1 Thermostat Clearance Needed

If you are using a stock Thermostat, you will need to notify the builder to move the #1 and #3 primary J-pipes outward to clear the Stock Thermostat location. "Standard" location interferes with the Thermostat, since most performance engines do not have them. Aircooled.Net recommends the use of a thermostat and flaps at all times!