Originally Posted by Chefboiali
Hmm... If the difference between the two is slim, it might be better on the pocket to go with the y8 head from a yard or someone selling one. How much of a HP gain do you really get?
On my friends Del Sol Si with nothing but intake, header, exhaust, and skunk 2 intake manifold he dynoed 156 whp. By comparison, my brothers old d16z6 with intake header and exhaust dynoed for 113 whp. Thats a 43 hp difference which is nothing to shake a stick at. With the Y8 your not gonna get numbers like that, you might see 10 to 15hp but your right that the y8 wont hurt the wallet as much.