Quote Originally Posted by Hyper View Post
Emilio at 949 racing

1. can you let us know what spark plugs/heat range work best in your 300hp engine?

2. Were there any mods done to the JDM square top manifold?? Edit. I see like wastegaste mounted at the rear location of the manifold..

Thanks a lot for sharing this info to us.
BKR7EIX-11, stock.