I have the 01 a4 1.8t quattro and its bone stock. This is my first audi and I was wondering if there is a boost controller on it. If so is it manual or electric. If there isnt one then what kind should I get?

 

If your stock there is not and you should not put one one cause you don't know enough about these cars to use it properly.

First search/read faq's and do research before moding your car.

 

^^^ this.

 

Well, the car uses its own boost controller which is controlled by the ECU, called the N75 valve. It cannot be manipulated by the user, but a tuner can manipulate it through ECU tuning. Generally if you get your car ECU "chipped" the new tune will allow a higher boost threshold (via the N75 valve).

Don't get a MBC or EBC for that matter. The N75 does a great job.