Used LT1 cylinder head crossover pipe. This mounts on the back of the cylinder heads and runs forward just above the passenger valve cover. This pipe has had air blown through the holes to ensure the pipe is not clogged. There are some pinholes where the hose clamps over the line. Please be advised that there are 3 variations of the LT1 steam lines which are car line specific, but all will bolt to any 92-97 LT1 heads if doing a swap. The item in the photo is the exact item being sold.