| These units are also known as the AAR, or auxilary air regulator. These units are rebuilt for us by the same company that rebuilds all the rest of the injection components that we sell. They've been rebuilding injection parts longer than the z man has been working on z's. Each part is disassembled, thoroughly cleaned, painted, and a new electrical element is then installed. Then they are bench tested and given a serial number. We guarantee them for a period of 12 months after the intial purchase, regardless of miles. The metal coolant tubes that are on these units are not included in the rebuilt units. You must reuse the ones off of your car. Core Charge:$30.00 not included in posted price, but it will show up when you make the purchase. Last update 01/07 | 
