Something to do with the cam shaft timing. The part took a few days to be delivered, but the repair was done in less than an hour. I now have all my power running through the car and absolutely love it. I have had quite a few cars, and this is the most impressive sounding stock exhaust Ive ever heard. Love the way it sounds... Especially the downshift crackle!!!!!!!!!!

 

That downshift is serious. it sounds like an actual manual car. its insane

 

Glad you got it fixed.

Now that you say it only took an hour, I am wondering why South Bay MB had to keep mine overnight (had it for 2 days!)

Did they put any test drive miles on the car after the fix? My dealer did....

 

Well if mine acts up that will be something to tell the service manager, NO TEST DRIVES with out me. I know that may sound stupid but I'm sure some dealer smoe would love to rawhide it some when no one is looking. All I can say guys is track your miles when you bring it in.

-Troy