So when i start my car from a cold start there is a squeaky noise that sounds like it is coming from right around the cat converter area. I have the magnaflow full cat-back exhaust system. Any ideas cuz this is really pissing me off!

 

i just hallowed my cat out because it was 90% clogged...because of that it was making the motor squell..now the squell is gone

 

Mine is squeaking @ like 2500-3000 rpm its drivin me nuts.