No one with a hone-made kit, asid from Tom (warmonger) has come close to matching the ADC output numbers. Mind you Toms used bits and bobs form the development kit ADC first made, to fabricate his own kit, so you can see that ADC is the way to go here.
Tom is working on making a kit out of the Weapon R headers, but that's a ways off, and you STILL need to modify those headers to make it all work - so there's not cheapo "drop in" kit available out there.
Like Jason said, the Honda engine bay is so roomy that you can slap any crap together and it'll fit.
Finally you NEED to get a LSD either Quaife or Torsen and a upgraded clutch. The sotck stuff simply won't tkae the extra power and you ARE an idiot if you decide to boost the enigne and ignore the transmission. It's also a good idea to replace the 3rd gear synchro's and any othe rworn parts in there. Good luck getting the upgraded 3rd synchro's yourself though cos Terry bought up all the ones he could find in the US.
