ITRCA

i did this a couple years back on my prelude, and i definetely felt a little worth-while difference, and it's free. just wondering if anyone tried it on the R. (is it even possible?)

(the only draw-back is that you had to re-connect the coolant line once the ambient temps began to drop below 65 F. it would cause the idle to freak and go into limp mode otherwise.)