can't deny it has less bends compare to others except HKS Hipower. you mentioned you bought used B&B and paid less than new SZ. i'd imagine that you'd have bought the new SZ if cheaper than used B&B. you requested dyno flow chart for SZ unfornately, i don't have dyno flow chart. i was referring to 3" SZ, ofcouse i can say 3" SZ flow more than 2.5" B&B but that isn't the case. you said you've owned B&B for over 8 years and the welds look great. i've no idea how could this be b/c i've seen B&B in person back in 2005 at local Z shop. i found out that the welds aren't that good and the bends are almost close to stock bend but i don't know how long did they manufactured this exhaust. i know they're not the only company who made the bends like this and the others did it also such as Greddy SP2, Borla ect.. they arn't asking premium price, only B&B wants the premium price way too far from average price for z32 exhaust on the market. SZ isn't that far from average. i figured 3" B&B quad oval is $389 more than 3" SZ quad dual round SS version. $1499 vs $1110. that isn't the case for some people including me. for me even SZ is more than B&B, i'll still get SZ for sure. so, my vote is SZ still the better buy for less bends, better welds and the price
