Hey guys. I have seen the vitara's in d series handling quite abit of boost and have came acrossed a block my friend built and is willing to sell to me for cheap. Its a d15b with ycp vitara's and fjd i beam special length rods. I was wondering how much nitrous would you guys think these pstons could handle? I know they are still cast but are stronger than than honda's casting. I already have a direct port kit sitting around and figured I ponder upon this build. Thank for all the help guys.