I couldnt hold back no longer, I ordered a head from Noss, with 21 cc domes. Do they really help that much? I had alot of people recommend them to me, and I cant wait to put it on. This shee is gonna be funnnnnnnn...

 

yeah the cool head def. helps a bit. it will run a quite bit cooler and you will also gain some performance due to the extra compression. the gain will probably be a little bit less than the gain was from just the pipes alone!!