What does a boost controller enable you to do, on a stock fd

crank that boost!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!111!!1

it allows you to control boost https://www.nopistons.com/forums/pub...DIR#>/wink.png

It enables you to change the boost over stock boost levels. Therfore if you have more boost you have more horse power. If you crank it too much you can blow your engine. I have one I am going to install and it has 3 different settings so I can have a little bit more boost or just even a bit more or maybe even alittle bit more. Depends on how much power i want on that day.

My advice is it is a good idea to have one.