Hey GTR32, get a set from Nengun with JAGR33 - maybe the shipping could be less...
The only issue that Gerald from Ice Performance can see (and I tend to agree to an extent) is that the primaries are very long, and hence a bit heavy to hang off the side of the turbo. But then, the bottom end of the primary dumps is supported by the Y pipe to the cat, so that isn't such an issue, methinks.
They are certainly the best design I have seen by far for stock / turbos that bolt on using the same dump system. The HKS seem (I can only tell from the pics i've seen online) to be not as well made.
INASNT, true, they are expensive, but they are hand welded in Japan - believe me the workmanship is incredible. It is all de-burred inside, the flanges have no welding slag etc., all in all an excellent piece of metal work. You are paying for the best.
As I said in my other thread, my mechanic and I are going to tackle it. Will let you know what happens (could be a few weeks though!)
Cheers