PLEASE LET IT SIT IDLE TILL ENGINE WARM UPTO NORMAL OPERATING TEMP BEFORE DRIVE OR REV 5. WE SUGGEST TO DO A DYNO TUNING AFTER INSTALL BECAUSE THE AIR FUEL RATIO MAY CHANGE. However some items cannot be sent via Australia Post so they will be sent with a courier eg: Extractors, Rotors, Sumps, Clutches, Fly Wheels. Most items are delivered within 1-7 days depending on size and location within Australia. Although we stock many thousands of product lines in our warehouse it is not possible due to space and financial restraints to stock all products that are actually available.If we do not have the product in stock there could possibly be a short delay of around 3-7 days to get the item into stock from the particular importers and dispatched and on its way. This item is in the category "Vehicle Parts & Accessories\Car & Truck Parts & Accessories\Air & Fuel Delivery\Turbos, Superchargers & Intercoolers\Turbos & Parts". The seller is "autopartsonline2007" and is located in this country: AU. This item can be shipped worldwide.