cookiemonster Posted September 23, 2009 Share Posted September 23, 2009 Just a quick question, after looking at the forums about exhausts it seems that they last the life of the car? But some people are saying they have had rot trouble. i know the UK winters can be pretty harsh but surely an expensive exhaust £1000+ would still be o.k? Reason being as im looking at getting a second hand exhaust and im wondering if it will still be o.k. Its only done 20k in 2 years. Any help as always would be much appreciated! Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted September 23, 2009 Share Posted September 23, 2009 i have a 2nd hand exhaust fitted, and the weak areas on it were the flexi joints, more precisily the welds, as they are often mig welded, not tig welded, or the flexi joint is mild steel not stainless. i had to replace 1 flexi joint wneh i fitted it, but the rest of the exhaust was fine. Quote Link to comment Share on other sites More sharing options...
cookiemonster Posted September 23, 2009 Author Share Posted September 23, 2009 would that be the same for a 5zigen a spec? Thanks for the quick reply. Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted September 23, 2009 Share Posted September 23, 2009 would that be the same for a 5zigen a spec? Thanks for the quick reply. in an answer, don't know. mine is the invidia G200 true dual. its about £800-£1000 depending on shipping and the supplier and the echange rate. and one of its flexi joints had rotted out. just delivered a second hand DC sports exhaust true dual, and it also showed corrosion on the flexi, nismo exhaust is renowned for the flexis splitting. so my guess is most companies seem to use mild steel flexi's, and it seems to be the weak spot. its also cheal and easy to fix. Quote Link to comment Share on other sites More sharing options...
cookiemonster Posted September 23, 2009 Author Share Posted September 23, 2009 well thats the main thing! as long as its cheap to get done if anything does go wrong. Thanks a lot! Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted September 23, 2009 Share Posted September 23, 2009 well thats the main thing! as long as its cheap to get done if anything does go wrong. Thanks a lot! not a lot to go wrong to be honest Quote Link to comment Share on other sites More sharing options...
jerry3167 Posted September 23, 2009 Share Posted September 23, 2009 5Zigen is top quality, be very surprised if they fell apart... Quote Link to comment Share on other sites More sharing options...
BulletMagnet Posted September 23, 2009 Share Posted September 23, 2009 5Zigen is top quality, be very surprised if they fell apart... It's only cos you got a 5Zigen..... If they should go wrong, can we expect more of this? Only kidding mate Quote Link to comment Share on other sites More sharing options...
jerry3167 Posted September 23, 2009 Share Posted September 23, 2009 W-T-F Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted September 24, 2009 Share Posted September 24, 2009 5zigen probably use the same as most other performance manufacturer, can't see anything that makes them stand out from the crowd. sorry, but i bet they'll suffer long term like any other exhaust. Quote Link to comment Share on other sites More sharing options...
cookiemonster Posted September 24, 2009 Author Share Posted September 24, 2009 guess that's why there's so many different answers on the forum already Quote Link to comment Share on other sites More sharing options...
jerry3167 Posted September 24, 2009 Share Posted September 24, 2009 It will last a whole lot longer if, and only if..you look after it ie clean it after its been raining, snow/ salt exposure etc Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted September 24, 2009 Share Posted September 24, 2009 It will last a whole lot longer if, and only if..you look after it ie clean it after its been raining, snow/ salt exposure etc very true. but the weak point is not the flexi joint its self, its the collars either side that hold the steel weave in place. on all the exhausts i've seen the welds have been fine, but the actual collar had disintergrated and rotted out. i fixed one side of mine with a new flexi joint and sourced a special stainless flexi joint which should fix the problem Quote Link to comment Share on other sites More sharing options...
Adriank Posted September 24, 2009 Share Posted September 24, 2009 They probably will, Flexis are the weak point in any exhaust. My old Nismo went at the flexis. My buddy club will last forever tho and thats one of the reasons i went for it. It doesnt have any flexis in the y-pipe so nothing to rot. Top quality welds to, i am very confident it will still be all shiny in 5 years time Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted September 24, 2009 Share Posted September 24, 2009 true, but flexi's allow for engine movment, Quote Link to comment Share on other sites More sharing options...
jerry3167 Posted September 24, 2009 Share Posted September 24, 2009 true, but flexi's allow for engine movment, To solve the problem of engine movement and preserve the flexi, just get your engine mounts poly-bushed and a torque damper. Quote Link to comment Share on other sites More sharing options...
Adriank Posted September 24, 2009 Share Posted September 24, 2009 Indeed, i have manifolds to go on aswell, and i may fit solid mounts. But on our cars the engines merely 'rock' not pull/push the exhaust, so flexis arent really neeeded if the exhaust is well built Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted September 24, 2009 Share Posted September 24, 2009 Indeed, i have manifolds to go on aswell, and i may fit solid mounts. But on our cars the engines merely 'rock' not pull/push the exhaust, so flexis arent really neeeded if the exhaust is well built must admit i'm not a fan of flexi's they are always the dodgy part of any exhaust. Quote Link to comment Share on other sites More sharing options...
jerry3167 Posted September 24, 2009 Share Posted September 24, 2009 I had a Jackson Racing manifold on my CTR, and poly engine mounts with torque damper!! In hindsight, the damper was overkill, the mounts did the job fine..no more movement of engine. Quote Link to comment Share on other sites More sharing options...
Adriank Posted September 24, 2009 Share Posted September 24, 2009 I had a Jackson Racing manifold on my CTR, and poly engine mounts with torque damper!! In hindsight, the damper was overkill, the mounts did the job fine..no more movement of engine. As you know jerry i had the ESMM's and a torque damper aswell But the 350z engine is mounted differently, and tbh it wont make as dramatic a difference or be as much of a benefit on our cars. Quote Link to comment Share on other sites More sharing options...
cookiemonster Posted September 24, 2009 Author Share Posted September 24, 2009 Thanks for the feed back guys know everyone will have had different experiences. Just good to know how ppl have sorted it! It's like asking manual or automatic? Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted September 24, 2009 Share Posted September 24, 2009 thats easy manual Quote Link to comment Share on other sites More sharing options...
mick43 Posted September 24, 2009 Share Posted September 24, 2009 What is the importance of the weave ? I've just purchased an exhaust from a member on the forum, and it's arrived with half the weave missing on one flexi joint and corroded amd missing parts of the collar that holds the weave in place. I'm told the exhaust doesn't leak, so I'm assuming the butt welds of the exhaust are all ok (and this looks the case when you look inside). But is the weave important ? Quote Link to comment Share on other sites More sharing options...
rtbiscuit Posted September 24, 2009 Share Posted September 24, 2009 What is the importance of the weave ? I've just purchased an exhaust from a member on the forum, and it's arrived with half the weave missing on one flexi joint and corroded amd missing parts of the collar that holds the weave in place. I'm told the exhaust doesn't leak, so I'm assuming the butt welds of the exhaust are all ok (and this looks the case when you look inside). But is the weave important ? my guess is it holds the ends of the flexi joints on as the internal is like a spring inside to allow for the flex, i think it also acts as a barrier to the external elements. someone else might have a more definitive answer. Quote Link to comment Share on other sites More sharing options...
Adriank Posted September 25, 2009 Share Posted September 25, 2009 The weave as far as im aware holds the pipe together. It gives structural rigidity, whilst allowing the pipe to bend. My Nismo weave was worn through, and it started to blow at the joint shortly after. i'd get it looked at before you fit it. Quote Link to comment Share on other sites More sharing options...
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