OK. So we had been using the Bisimoto header while running Honda Challenge. The header is the best header we've ever had on the car. The top end power is amazing.

The problem comes in here, we are now running in ITA as well, so the power steering had to be put back into the car, now the header doesn't fit.
We contacted Bisi regarding this, & basically unless we have enough "interest" (ie more people willing to buy one as well) he won't re-design one that will clearance the ps as in the past "there has been no market for it."

So if you would be interested please please contact him to display interest. Obviously we wouldn't go through all this trouble if we didn't REALLY think that his header is the best thing period for the d-series.

His site: http://www.bisimoto.com (you can see the header there & use the contact us on his site)

Also check out: http://www.hadamotorsport.com/tech/review/dsemc/

our personal dyno results (on our OPM IT-legal engine & our bone stock engine both showed similar/amazing gains) & the car (although loud) sounds amazing w/ this header....lap times (on track) also decreased after using this header.
("street version" is one referring to not "race version" as "race version" uses a megaphone sytle exit thats really only applicable for drag racers & would require extensive modification for using w/ exhaust piping/muffler/etc.)

(retails for appx $589, see http://www.exospeed.com for more pics/pricing)


thanks!