I want to put in a cold air intake in my Jag, will that compromize any part of the engine since its souch a sensitive system ? what could happen?
Sure, you can do it, but it's not recommended. I realize this is a hotly debated topic, but in my experience, the manufacturer's intake that was specifically engineered / designed for your car is the best. The basic problem arises when you start making changes to the air intake, you also cause the computer to attempt to adapt to the new intake system, altered airflow and temperature of incoming air. You'll frequently have problems with your sensors when changing air intakes from stock to the after market intakes, and usually the only positive that results is the sound of the air intake. Performance is very rarely affected in a positive way by using an after market air intake since the computer will attempt to restore the original settings based on the original intake system for which it was programmed.