Combines CTS Air to Air update

You've probably already done this but here goes. Firstly you need to clean the inter-cooler regularly, at least every second day,

On CTS machines the air to air cooler gets replaced with one that has larger inlet and outlet tubes using adpartor hoses to join to the exiting cooler tubes that run to_ from turbo. Also the ECU is replaced like Rod has explained, this is all done under a product improvemnt program. No cost to you. Now is the time to do it, because the ECU has to be sent away to be repacked.