Well that's fricken RAD!! Jeez, after I buy a set of 1-5/8 to 1-3/4 they come out with these!! How much of a difference do you think they would be on my 408 stroker? My engine dyno'd at 533 HP/513 FT LBS with the step headers..I wonder how much more I could get out of it with the 1-7/8" headers......