After months of them sitting around I finally had time to bring my car in and install a set of long tubes from American Racing Headers. I chose the 1 3/4" primary with catted X pipe. I was surprised by how quiet they are cruising on the highway no noise at all and no drone although I do have Bullitt mufflers so they're aren't all that obnoxious to begin with.
I don't have a dyno so I'm waiting for an email tune from Jim at JDM, I'm sure his tune the A.R.H. headers and the addition of the C.H.E. LCA's will get me into the 12's on street tire..... how far?... I'll let you guys know.
If you guys want to check out some pics I made a basic install.

A.R.H. long tube install