I am thinking about getting the cobb downpipe that comes with the high flow cat and was wondering if anyone has any experience or opinion about it. Performance and sound. Or if anyone can recommend a different dp with a cat. Gotta stay legal or move out to the stix.
I was looking for a while for a catted downpipe as well. Finding that most hardcore wrx's were catless, and not finding any good advice on the catted downpipes i just went catless. I can deal with changing the downpipe to stock once every 2 years for my emissions test. It's worth it.
i installed the cobb DP with high flow cat last week and it has been great. the install was straight forward and everything fit perfectly(except the stock heat shield which had to be slightly modified to fit over the new DP), its been about 150 miles since the install and no CEL yet.