just stepping in because I was told my time on e.t. was not accurate. Well they indeed are. I only wish they were better. They will be though on the 20th (dec.) @houston Raceway. The reason I believe is due to the worn drag radials. Just bought new ones in the front. Plus trying out 17's for the first time I'll see how the new rubber works and repost. As for the nitrous I have set up two sets on two civics one= dx, one=ex 98--00. Retarded timing a few degrees, changed plugs, and go. Again on newer vehicles also on the dx(55) on the ex(65). both run fine. Hoped I helped.