Frankenstien exhaust. Generic term for a DYI exhaust kit. I run CIA headers into their export pipes into Dynomax head tubes to Flowmaster Super 40 series mufflers into the stock resonators with stock tips. Which came attached to the resonators. I like how the resonators kill any of the rasping that come notoriuosly from the Flows. It looks like a stock exhaust for those I want to "sleep on." Its generally quiet at idle but at WOT its good and loud and the Super 40's give it a little deeper rumble. At the Car Craft Summer Nats the car sounds like my grandpa's Caddy. Cant even hear it. Defintally better than the stock crap.