Originally Posted by theDreamer

No, the system will run normally as if you just have a really long intake on the car.
It is when you start to drive and get into boost that you really need a proper tune. Many of the Mustang guys I know do their own install and the company sends a base tune to get them down to a dyno for a full tune. It is basically a stock map tune with a couple fail safes to protect the engine.