yea thats my plan but i can tell its coming from there cause the sounds is coming from both sides. but i really dont know why theres no bolt hole...the manifold i had didnt have one neither...its really odd though. but it don't think its leaking there cause like i said i went exhuast cement happy on the part of the ports and cranked it down as much as i could but i'll run it and check since its cold enough to see leaks