I am with Bio on this one...not really happy with any of the headers out there because of leaking and fit issues...yes its easy to pay for better clamps and weld in a new flex...but then you have to deal with the o2 issue on SD headers...that is the original reason I bought the DP is because there is no leak issues and they fit like the stock one does....the main reason I bumped this thread was because I already have the DP and don't really feel like going through the hassle of selling it then buying headers...so if don't loose that much WHP from just adding a Plog to my current setup I am ok with that...I know everyone says don't do it but I deff am going to try and run a cam with a Plog Dp combo