Not sure if any of those videos are my car, but, i have 1 7/8" kooks lt's, solo catless connection pipe and mach unbalanced, with solo j pipes...sounds excellent IMO but all my friends say reallly loud at WOT if there behind or next to me..i love going under viaducts and through tunnels and just pushing it WOT...at tht point i would agree, it hurts my ears a little

but all in all, i love the way it sounds, bc i love my cars loud..i deal with SST/Sportsman Modified/Super Modified racecars every weekend, which are nothing but open headers (some acctually run Kooks LT's) so i may have some ear damage from that lol