Exhausting situation !! I purchased a "Magnaflo" system from a socal Tri Five company. Santa Ana... It is a clamp together system w/ X -pipe , made for a 57' Bel Aire, 2dr hrdtp. Now the New BluePrint SBC is in with the new long tube headers , the spread on my headers is wide enough at the collectors to put the inlet pipes in between , cleanly. I've never had a X pipe system before, this system " Says " you can cut to fit certain sections , that is not the problem here... it's simply not wide enough , whats up ? It's probably at least 4 to 6 inches to narrow … Head Scratcher