Originally Posted by
cjm1126
i havent tried the jp4, but i know that the 9853 novarossi, and 2035 associated pipes made a big difference in performance for mine as well, over the grp pipe, and the economy got better, i also found the os p3 plug to work better with the engine
Yea I heard the same thing bout those pipes but I already had a jp4 on my v-spec so thats what i use.
I also switched to os plugs ran a p3 for awhile but had some issues with them not lasting long so i went to a p4 and have had the same plug in the motor for 3/4 a gallon or so w/ no problems so far
