The resonators are different on ZX2s, and they will free up a little power when removed. They are both between the air box and throttle body, at least on my Dads. So hot air isnt a problem
-Ken V.
1998.5 SE Praire Tan Zetec ATX
psycho_bass@hotmail.com
Roush springs Roush rear sway bar BAT struts 17" Millie Miglia HT3 and a ton of subtle asthetic mods