Car is back from Kleemann !!!!!!
As far as the issues with the engine light, and the metal on metal vibration............... they should not be happening. Take you car back to the installer and have them fixed. The K2 upgrade should be seamless. If you are hearing new sounds (other than an aggressive exhaust) and seeing warning lights on your dash, something is wrong.
Best of luck and keep us updated.
I had... and still have... a metal tinging sound when I accelerate. Cory speculated in might be some loose solder in the exhaust, etc... my dealer noted that Kleeman literally had to bend the heat shield by the headers so the headers would fit... and my headers on one side are touching this shield every so slightly. That rattle or loose sounding metal ting you have may be the same thing. It is intermittant and comes and goes based on rpm. They didn't want to try and bend it further, and I have yet to take it to a muffler shop to see if they can bend it.
Cory anknowledged that sometimes they just don't bend the heat shield enough and that the explaination makes sense.
Just a thought,
Loren









