I just did an downpipe install on my wrx and hear a different sound in the exhaust. I'm not sure how to discripe it but it sounds almost like a "tick, tick, tick" kind of sound. It is not as low pitched as the rest of the exhaust and i'm thinking that it might be a leak but i'm not sure. I have included a clip if that can help. It is an autospeed downpipe and a bosal twin tip cat back. Any help would be great. I will see if I can get a better sound clip tomorrow before work. Thanks everyone.
EDIT: the clip is being recorded from the ground next to the car. about at the drivers side door.