Super Awesome, just bolted right in, no pry bars etc. Already have the RIPP cat back exhaust. Location of O2 sensor bungs excellent. I bought a set of bosch O2's (crap, all 4 generated engine codes.) I had installed them before I put the headers in. Replaced them with Walker O2's and was surprised to find it was easy to replace all of them, very easy to get to. Very impressed with the welds. Instructions say to remove transmission cross member and support transmission, I did not have to. Only...