Chris@Hypertech
Member
The ECU will automatically adjust the stock tune for the additional airflow from the exhaust and intake mods. The problem you're going to have is that your CAI is throwing off your MAF calibration, causing the ECU to calculate the airflow incorrectly, resulting in the engine running lean.
This isn't too much of a problem at part throttle, because the ECU will correct by adding fuel with the fuel trims. At wide open throttle, the ECU doesn't correct with the fuel trims. With no changes to the tune to account for the additional airflow, the combination of an incorrect MAF calibration, and the increase in airflow from the mods will cause boost to go too high, AFRs will lean out, and EGTs will be hotter. The engine will be way more suseptable to knock, and to hitting boost and load cut to try to protect the engine.
Like the others have suggested, waiting to get a tune is definitely the safest way to go.
Chris
This isn't too much of a problem at part throttle, because the ECU will correct by adding fuel with the fuel trims. At wide open throttle, the ECU doesn't correct with the fuel trims. With no changes to the tune to account for the additional airflow, the combination of an incorrect MAF calibration, and the increase in airflow from the mods will cause boost to go too high, AFRs will lean out, and EGTs will be hotter. The engine will be way more suseptable to knock, and to hitting boost and load cut to try to protect the engine.
Like the others have suggested, waiting to get a tune is definitely the safest way to go.
Chris