The description says "Connect the Dug headers to the factory or aftermarket catalytic converter", my observation is that the catalytic converter is located behind the passenger seat (below the vehicle) located. I believe the converter was installed closer to this position but the cat has already been removed from my machine so I'm not 100% sure. It didn't matter since I was making a custom exhaust system. The good news is this tube bolts directly onto my "short" Summit headers and it's HUGEโฆ