Digsy Posted August 30, 2001 Share Posted August 30, 2001 This is *NOT* intended to become a thread about de-catting!!! I *know* what you guys are like. Behave! :-) Has anyone ever had to replace, in routine maintenance, the downpipe assemblies on their Supra? As far as I am aware there are no aftermarket alternatives, and the original parts cost over £500+VAT *EACH* from Japan because they include the catalysts. I've only ever had to replace a set of downpipes on a car I've owned once, but I fully exepect to go through the rest of the system. I would hope that the downpipes will last longer than the mid section / back box. Anyone have any direct experience? Quote Link to comment Share on other sites More sharing options...
Phil Posted August 30, 2001 Share Posted August 30, 2001 I suspect NA downpipes will be totally different to TT ones anyway but I'm sure there is an enormous amount of unused TT Cat Downpipes hanging in garages all over the country Cheers, Quote Link to comment Share on other sites More sharing options...
Brian Jackett Posted September 3, 2001 Share Posted September 3, 2001 I will have a complete set of cats as I replace mine this weekend. If you want to buy them Quote Link to comment Share on other sites More sharing options...
Peter Betts Posted September 4, 2001 Share Posted September 4, 2001 Leon had loads just taking up room in his driveway. He may have had a chuck out but you never know. I kept my old system just in case. Give it 6months and I'll probably chuck it as well. I always keep the 2nd CAT though just in case I get an ar*e of an MOT guy. There are generic CAT systems which you could get couple to your flanges but the second hand route is the one to choose in my opinion. BUT you shouldn't have to pay for something that would have been thrown away. Be warned though. I found my stock system extremely restrictive. Even though it functioned really well on emmisions etc there was a collapsed baffle somewhere which made it extremely asthmatic on any boost higher than about 1.1bar. I never really noticed it until I got Hybrid turbos and it upped the boost a little. Fitted a Mongoose system and BOY! what a change! I'd always run with NO CATS but the back box was a problem so it turned out. So be warned with second hand gear. Quote Link to comment Share on other sites More sharing options...
Phil Posted September 4, 2001 Share Posted September 4, 2001 Bear in mind that Darren has an NA though, I think we are all talking about TT downpipes which are probably different. Cheers, Quote Link to comment Share on other sites More sharing options...
Digsy Posted September 4, 2001 Author Share Posted September 4, 2001 Yep. I'm talking about the stock system on an NA. I don't need to buy any replacement parts yet - not by a long way - but thanks for the offers. I just wanted to get a feel for the longevity of the downpipe / cat assembly to find out if I need to *budget* for a replacement sometime during the next three years. Quote Link to comment Share on other sites More sharing options...
Brian Jackett Posted September 4, 2001 Share Posted September 4, 2001 Anyone know how much an engine is, just so I can budget...... Hee Hee could not resist. B1YEE Quote Link to comment Share on other sites More sharing options...
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