I just installed the Bassani x-pipe with high flow cats on my 06 today. I had heard that o2 extensions were not needed on the manual transmissions, but my system is about 3"-6" too short to plug back up. I also noticed that the exhaust tips are sticking out the back about a 1/2"-1" more than before. I've already tried loosing all the fittings and then pushing/shoving/wiggling/banging the pipes as far forward as they will go. Any one else experienced similar issue with their installs? Thanks.