I went to install the mopar quad tips tonight, from what I have read the M logo is under the rear plastic and hard to see. I installed one side and it stood out about 3 inches past the plastic where you could clearly see the M logo just walking by. Is this normal? I also noticed a good sized gap on the outter side of the tip about an inch and a half. I ended up putting the stock one back on. Am I doing something wrong? My current exhaust system is a Flowmaster American Thunder Cat Back. The stock tips fit with no problem. Any Ideas or is this normal?