Digging this one back up, my new question is about exhaust. In the ECTA rule book for production I cannot find anything about exhaust requirement. When we where at the April event I saw a car who has some PS records that we see every meet and it didn't appear to have much more than a short section that dumped under the car past the headers. Is there an exhaust rule for production that I have overlooked? I know for the SCTA there is but in the ECTA rule book I cannot fond one and the cars I see running production don't appear to follow the SCTA rules.