What "brand" of headers has this EK9?

[jugbugz]

I bought my EK9 almost two years ago knowing nothing about aftermarket performance parts before. I was just hoping to buy the car. It took me 6 months to learn that JASMA(Japanese Automobile Sports Muffler Association) is not a brand but just a certification for emission, quality etc....So then I was looking on the header to see a stamp or something for the brand and I saw "5Zigen". I thought this nust be a crap since I was never heart about it, but seaching on the net for a while I was quite impressed about 5Zigen (5 dimensions). This USA maker is specialized in the developement of racing exhaust systems and its the 3 leading manufacturer in Japan!!!
Mine is 4-2-1 and is desinged for midrange power and indeed is true. This header along with a pair of SKunk2 Racing Stage 2 cams which are specifically designed for top end power is a perfect match. Believe my words!!!
If any of you guys has anything to say about this header I would like to hear!
There are a lot of interesting details about 5Zigen in its official website

I agree with you all the way with 5zigen headers!!! The best sounding **** I've ever heard on a Honda.. but maybe because its a B16B...

Stage 2 cams must've made a good difference... I was thinking about getting cams but the install, ecu and tuning would be expensive here...