Since my '81 D is also past that WA 25-year milestone where emissions testing is no longer required, I'm wondering if there's an exhaust option that has been found to make a significant difference in an otherwise stock PRV. I've done some fiddling with the intake, replacing the stock air filter and box with a free-flow cold air system and that's helped the little D's spunkiness a little but I'm looking for first-hand experience with other bolt-on-no-other-major-changes alterations that are worth the cost. Has anyone coughed up the $Grand or so for John Hervey's stainless steel headers/mufflers system and with what result? Not complaining about the price, it's obviously a costly item to construct, but I'm wanting to know if the change in performance is really worth the investment? How about the noise level? I've tried all 3 of his .mpg links on the website to check out the sound but they have led me to dead ends so I don't know what the difference is in noise level. I really enjoy the quiet cabin of my D. I am willing to sacrafice some noise level for performance if I have to, but don't want to need another amp to be able to hear the stereo. Any info happily welcomed. Thanx, Craig Werner 07181 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/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> 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/