[94goldprice]

Hey guys, I just installed a pair of Cats earlier today (This and it's counterpart) and my car is significantly louder. I installed new o2 sensors with them (delco) and tightened everything down very well. Could it be that pretty much everything behind the cats is still stock? I am waiting for some more free time before I install my cat-back, but am wondering if this loud exhaust will diminish a little over time or change completely once the cat-back is installed?

 

[94goldprice]

no leaks around headers. First thing I did was look there once I fired her up. It seems a little bit louder on my drivers side. I'm just wondering if this will get quieter once everything else gets installed.