Crankshaft pulley and supercharger cog
 

Hey!

I have a 2004 mini cooper s that i am looking to install crankshaft pulley, supercharger cog and the shortened belt.

My current upgrades are:
Multi directional injectors
Ignition coils
Rear motor mount
Cool air intake

I like modding cars and would love to do the pulley upgrade. I am a little concerned about the large gain in power the car will have after the work is done. Does this Pulley upgrade typically come with any headaches? Also, should I upgrade any other part of the car to support thIs mod? I'm assuming the car should be tuned as well.

When I do this upgrade I want to make sure it's done the right way. I don't need anything else breaking on the car that i can prevent. :) thanks