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Old 12-09-2018, 05:33 PM   #31
InstantCustard
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i made a rear exhaust out of copper pipe once, i didnt bother with the back box just had a middle box and stretched the copper pipe out gradualy getting wider towards the end, it was loud at low revs and not a t high revs, sounded very odd.


Sounds really strange, would love to have heard that


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couldnt be bothered to stretch that far to pull it out.
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Haz obviously don't like custard , my Mrs spits it out to!
I love it
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Old 12-09-2018, 10:39 PM   #32
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Thinking back Iím sure someone said that when copper gets very hot itís poisonous....not 100% sure on this before everyone rushing out to make one...it was on a 1100 mini traveler, went from a tiny standard size exhaust to a 5 inch end over about 4 ft in length, I think it was originally from a display stand from a super market, it was polished bright gold colour and green on the inside so I knew it was copper, wouldnít have been cheap to make, would be good to see what difference a end pipe would sound like from various deferent materials, I remember the exhausts that were advertised in fast car magazine that had loads of baffle plates at the end of the exhaust, you unbolted the plates to get the sound / performance you wanted, take to many plates out and you loose performance, it was all about the balancing of sound & performance, canít think what they called the exhaust now...


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Old 12-09-2018, 11:59 PM   #33
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The copper pipe sounds brilliant, not a punn lol, I do chop a lot of copper but 2 inch is uncommon, I would give it a go if I didn't have a S,S skip to choose from,
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Old 13-09-2018, 12:47 AM   #34
MiniLandy
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Originally Posted by hebby View Post
...I remember the exhausts that were advertised in fast car magazine that had loads of baffle plates at the end of the exhaust, you unbolted the plates to get the sound / performance you wanted, take to many plates out and you loose performance, it was all about the balancing of sound & performance, canít think what they called the exhaust now...
Sounds like a Supertrapp exhaust?
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Fuck me Shaun. That actually made sense.
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Old 13-09-2018, 07:21 AM   #35
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copper gives off poisonous gasses when heated by exhaust fumes, most definitely not suitable for an exhaust!
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Old 13-09-2018, 07:24 AM   #36
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Oh well this confirms my thoughts then, probably why it sounded so odd too as Iíve found anything like this since & yes supertrap exhaust thatís the name of it...


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Old 15-09-2018, 06:41 AM   #37
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At least a heavy exhaust is weight in the right place? If you have to carry weight, low down is best!
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