Kayo, Thank you for your response. > Do you still have the OEM pipes and muffler? I don't, actually, and others have concurred with you that this is probably my problem. I intend to replace my current exhaust system with a stock system as soon as possible. I will respond to the list when this has been done and let everyone know the outcome. -Ryan To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/