you have to learn to drive your car all over again. because boost is there all the time,
it is like leaving from dead still at wot all the time, you are in boost even at idle, and your relief valve (Computer operated ) no longer opens and closes when told to. when you let off to slow down the boost is still on and the car tries to keep going, when you leave a red light ,your car will buck,jump,until you floor it because of boost. so like i said you have to learn to drive your car all over again,, but try it,you may not like it.
and no the mb and or the v8 crossfire guys don't like them,, out of 10000 v8's ( that are into performance) there are only 10 or so fixed pulley's and at one time there were over 100 ,, there was one on mbworld for sale for $100.00 jim