Are these the same headers that have been available for a while now?

http://www.f150lightning.com/products.htm

JL, you didn't answer before. Did you get a chance to compare these headers to other headers on the market? I'm curious as to what kind of numbers they make and where they make their power in comparison to the other headers out there.

Thanks and Happy New Year!

 

Flash; No i havn't tested these headers against other long tube headers.neither have i dyno'd them we simply have been tuning our trucks with these headers and testing them @ the track. we have seen around .3 reduction in the E.T.'s and about 3-4 mph. we had our trucks running at the same track on the same day against other trucks with different long tubes with basically the same mods and our trucks with these headers on were running quicker and faster. so i feel these are very good (equal) length headers we have had good success with them also we offer them in a step header with bigger collectors if any one would want them....JL
SVT: yes these headrers make serious amounts of power over the shorty equals...JL