I did do an advanced search on the E53 forum before asking this question
Seriously considering electronic cutouts for my 2003 4.6is. I thought about the X-Pipe. It sounds nice but just not for me. I'm not a 'BMW guy' per say. Bought my X5 because it was a great compromise of functionalities and I like the way it looks. So not overly concerned about sounding 'red neck' one in a while. Sometimes a little hillbillying can be FUN.
At any rate, I've heard complaints that there is not enough room under the E53 to mount the cutouts, or the fit is so tight you have to put them somewhere goofy?
Any advice or examples welcome. From my search it didn't seem many E53 owners on this forum have cutouts. But maybe I just can't search worth a diddle. Quite possible.
Thanks.