Originally Posted by
The Spectacle
They're good for about 450whp on pump gas. A lot of guys add a 3mm headgasket to run more boost and take it above 500whp...something I will NOT be doing.
Which is stupid when you have a real tuning system (AEM EMS, Hondata, Etc) and a real tune. You loose a lot of quench area doing a 3mm headgasket so in the long run it isn't worth it