Ive searched and cant find anyone that has used either brand. If anyone has or knows someone who has either brand please reply and let me hear your opinions bc im buying my HFC's soon and dont want to pick ones with cracking or fitment issues and ive read that berk and crawford both have problems.

 

Have used AAM High Flow Cats for over a year. Look great, sound great, no CELs, no other problems, NOT cheap. I would buy them again.