MPPK vs 3rd party tune?

[23109VC]

I just installed the M performance exhaust on my F15 sDrive 35i. I'm thinking about adding a tune to wake up the car and add a little more performance I'm debating between doing the OEM MPPK or going with an aftermarket set up like boot mod or race chip.

Pricing is for the most part not a huge issue one or the other may be slightly more or less expensive but not a drastic difference I'm curious if any of you have any thoughts on which one would be ideal?

[yewlock]

MPPK if you still under factory warranty. Otherwise third party tune