Originally Posted by Danpjack
what is the real difference between the c1 and the c5 i know this question is on like every thread but i want like a answer not people beating around the bush :-)
on the engine itself it's mainly the head.. the c5 is the type-r adn it uses a pr3 head thats ported, the c1 uses the better p72 head that hasnt been ported.
the type-r also using higher compression pistons.