Yeah, right now the estimate from my repair shop is $441.29 for the cat. Which seems very high if it's just a replacement part. The high flow cat from PFYC.com was $471.05 so if I did that, increase the downpipe size and have the repair shop just do a tune to make the engine work correctly, it may cost around the same as the original cost with a higher performance part.

I guess I just have to see if the downpipe change and such would work correctly.