I was just curious. Got a lot of dudes where I'm from that remove them and install nitrous spray plates in the secondaries. I can't convince them that the whole top end of these LS/VTEC's would be smoother with them in. Instead they compensate the lack of vacuum at low RPM with a little spray-seems to work, kinda rough on CV shafts. The nice thing about the S300 is that you don't have to have a prom burner to do updates(the S200 I played with did and it SUCKED).