purple5ive
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Fixing my Beloved exhaust.
G’day fellas
im looking at trying to get my Greddy PEX exhaust system repaired. The problem is the insides of the muffler system itself has seen better days and I can feel the baffling making all sorts of noise inside the actual muffler and in turn causing my car to perform poorly and also become a bit louder
I would like to keep the current exhaust/mufflers due to it being so rare. we all know what the exhaust looks like and being the shape it is (round canon like style) im not too sure if they can be done or not 9dont mind the back portion thats not visible being cut and shut)
Has anyone successfully repaired/replaced the insides of the mufflers before, if so what’s involved and is it a very expensive exercise
Prefer a mob in Melbourne to deal with
Cheers
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MRTurbo
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Re: Fixing my Beloved exhaust.
2013/03/20 15:14:28
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steel wool, chicken wire and a broomstick works wonders 
1990 SW20 GT 3S-GTE Targa 2001 Honda CBR600F4i 
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purple5ive
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Re: Fixing my Beloved exhaust.
2013/03/20 16:08:45
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looking to get it done properly not a hack job
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kameleon
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Re: Fixing my Beloved exhaust.
2013/03/20 21:35:01
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No good, tried on a PP exhaust once and that ended in tears. buy a new one or a better used one.
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purple5ive
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Re: Fixing my Beloved exhaust.
2013/03/20 21:55:06
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ahh crap that sucks then. trying to find a used one is nearly impossible, new one not going to happen cause they dont make them anymore
ill have a look around i guess, dylan had one for sale a while ago, only one muffler is bad so hopefully can find a matching pair in good shape
cheers
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dasic1
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Re: Fixing my Beloved exhaust.
2013/03/20 22:35:41
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What was the problem Trav?
Ive thought about cutting the fujitsubo open.
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purple5ive
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Re: Fixing my Beloved exhaust.
2013/03/20 22:41:34
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why?? make it louder?
the fujitsubo and PP exhaust can be opened afaik cause they have the seams whewre the two ends of the shhet metal join on the muffler
the PEX one i have doesnt have anything like that, its like a canon so looks like im [link=mailto:f@rked]f@rked[/link] regardless
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dasic1
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Re: Fixing my Beloved exhaust.
2013/03/20 23:06:30
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Not louder as I need a quiet exhaust, but to see if it can be made to flow better as I lost around 4-5psi and 40rwkw over the ebay one You could try Trikfab in Dandenong, that's who's done lots of my stuff and pretty sure them make custom mufflers
post edited by dasic1 - 2013/03/20 23:13:25
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kameleon
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Re: Fixing my Beloved exhaust.
2013/03/23 15:34:01
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The perforated tubes break and drop into the cannisters. This allows all the packing to then be blown out.
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purple5ive
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Re: Fixing my Beloved exhaust.
2013/03/25 10:34:15
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ok, just an update on this found one of the bolts on the exhaust join to the dump pipe had come loose causing the whole rattling sound. i did however bang on the muffler cans and can still hear the insides makign a bit of noise but its sounding much better so may get some more use out of it afterall.
cheers
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worldwalker
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Re: Fixing my Beloved exhaust.
2013/03/26 22:50:47
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Generally once the muffler goes, its a throw away; there is no reason you couldn't repair it though. You'd have to cut it open, acid bath it, recoat it, repair the collapse, repack and weld it back on. But it'd be a bit more than a replacement stainless muffler (if you're so inclined). If you do all the work yourself probably cost you about $200 in parts.
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MCT_MR2
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Re: Fixing my Beloved exhaust.
2013/03/27 20:32:02
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might be a long shot, but get in contact with 4b fabrications in carrum down, if memory serves me right they custom make the black mamba mufflers similar to the stuff racepace used to make. they might be able to repack the mufflers for you, but be warned they will not be cheap.
'88 MR2 4AGTE W/ EFR6258 224.6KW @ 20PSI more to come......
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purple5ive
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Re: Fixing my Beloved exhaust.
2013/03/28 12:20:08
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do you know anyone there MCT_MR2 they are around the corner from me.
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purple5ive
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Re: Fixing my Beloved exhaust.
2013/03/28 12:22:21
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worldwalker
Generally once the muffler goes, its a throw away; there is no reason you couldn't repair it though. You'd have to cut it open, acid bath it, recoat it, repair the collapse, repack and weld it back on. But it'd be a bit more than a replacement stainless muffler (if you're so inclined). If you do all the work yourself probably cost you about $200 in parts.
Thanks mate, i wouldnt nkow where to start so it would have to be done in a shop might get a new system if worse comes to worse. just didnt want to replace my current one cause i wont find another similar relacement
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MCT_MR2
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Re: Fixing my Beloved exhaust.
2013/03/28 21:20:42
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no I dont know anyone there, but ive worked on quite a few cars with custom made black mamba mufflers, and from a quick google search, it appears they are the guys that make them, as I know they are made in vic somewhere. black mamba mufflers are usually used for shutting up race cars for sandown etc, and use quality materials for the muffler innards as they take a lot of heat, even a few v8 supercars use them
'88 MR2 4AGTE W/ EFR6258 224.6KW @ 20PSI more to come......
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