USNA1970

I was getting the P0430 cat inefficiency CEL. I decided to buy some inexpensive Davico cats from Rockauto for both banks, and I am pretty happy with how the car sounds. I am thinking that my 16 year old original cats were restricking some flow. Not sure if they sound any different maybe someone can let me know after listening to the attachments.

dporto

CEL gone? Stock mufflers? It certainly doesn't sound stock - it's tough to say if they sound "different"? Different than what? Maybe you should have done a "before & after" recording...

USNA1970

CEL is gone and I have driven about 15 times since the install. Mufflers are stock. I've never heard my car from outside and never had a recording like this. I also replaced all 4 O2 sensors as well. I do feel like the throttle response is a little quicker.

I have heard my car with windows down when driving near a concrete wall etc. It had always seemed to have a nice note but it seems a little more aggressive now. I was considering getting a sporty sounding exhaust. I know that these upgrades don't do much of anything for power, but was interested in a little better sound. After hearing this video, I am thinking the stock exhaust sounds just fine.