I found a fello mustang fan who is selling some long tube headers. He says that they are 1 5/8" long tubes that come in pieces so that you dont have to pull the engine out in order to install them. I was just curious if that for $125 they would be a good deal. I wanted long tubes to begin with so i am very interested. But do you think 1 5/8 is too big for a stock stang. I do plan on an HCI setup by February so the needed breathing room is necessary. HOwever do i have to weld these headers together or is it all flanges and nuts and bolts? thanx.