exhaust leak

Yesterday I installed the CorkSport Power Series racepipe on my 2008 MS3. The install was a PITA (mostly because of the limited working area under the car and my lack of experience). I had to use ramps to access the stock midpipe and crossmembers since my jack and stands were prohibiting me from...

1st problem - Sounds like my exhaust manifold gasket has gone out because I can hear the engine's RPMs much more than before. I believe it is the manifold leak because when I turn the wheel to the right it seems to get even louder. Is this common on the CX-9 and is my thinking correct? I do have...

So, as the title says, I've been getting a whiff of exhaust in the cabin, especially in the morning. This has happened since I got the car around 9200 miles, prompting me to buy a CO monitor to make sure I'm not going to be fumigated. I highly recommend doing this if you have any suspicion that...