I agree with this too. I have driven my car now a number of thousand miles since the installation last September of my bespoke system constructed by CH Fabrication. Within the first week it had gone a little copper like on the 21? stainless steel headers as expected due to the heat. The main part of the system still looks like new albeit a little dirty at the moment. The quality of the welding is the best I have seen. The pictures below were taken around a week after initial installation and it is 100% high quality stainless steel. The UK fabricator said that if it breaks he will fix it! To confirm he expects it to last as well as the body and he knows I plan on keeping the car for a long long time. HYPERLINK "http://tinyurl.com/29qwwt"http://tinyurl.com/29qwwt As you can see it is fully free-flowing. It has 21? headers which are optimum for the PRV which converge to a U shaped piece through to the silenced tailpipe of choice. As the space is tight and the engine is not symmetrical the other side is sculpted slightly differently. My DMC sounds like a TVR or the ?Back To The Future DeLorean? and when you lift off the throttle you can hear every pop, fart and tune the engine is playing. If 3.5? diameter pipes are too big you can always go smaller?or bigger? My system wasn?t the cheapest but I firmly believe you get what you pay for. The system would cost £1,500 if any of you wanted one but this is without cats. If you wanted cats installed I am sure Chris at CH fabrication would oblige. The previous system had stainless 3? pipes connected to steel pipe work (gave up after 5 years) which was welded to the original manifolds. The new system sounds better and the car surges more too! Kind regards, Chris Hawes Vin 5255 ? more stainless than most _____ From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of andyblackmon@xxxxxxx Sent: 21 May 2007 04:11 To: dmcnews@xxxxxxxxxxxxxxx Subject: Re: [DML] DMCH performance exhaust (and other stuff) High grades of stainless steel will not rust, they will discolor from heat. Surely any welder who welds stainless will use the proper rods for the welds is so this also will not rust. Almost if not all metals will discolor under high heat, maybe C-276 steel would do it, but you could also buy a car for what the exhaust system would cost. Just shut the hood and don't sweat the small stuff like a little discoloring of the exhaust system. Andy Blackmon 3513 No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.467 / Virus Database: 269.7.5/812 - Release Date: 19/05/2007 13:52 No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.467 / Virus Database: 269.7.6/814 - Release Date: 21/05/2007 14:01 [Non-text portions of this message have been removed] 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/