Ok lads, looks like I'm having a 2.5" full system made up by Pro-Speed now before the Williams gets mapped. We are looking at manifold and d/p options as well. I'm having it bypass the CAT completely.
Must be worth another couple of BHP, surely?
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Thread: Exhaust system diam
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31-03-2010, 14:18 #51Forum User
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31-03-2010, 14:29 #52Forum User
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Great!!! :D
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31-03-2010, 15:21 #53Forum User
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Originally Posted by cliokongen
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31-03-2010, 16:53 #54Forum User
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man thats gunna be LOUD
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31-03-2010, 17:01 #55Forum User
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Well, my current one is fookin loud as well. I don't want them to make it loud, but if it is loud then so be it. Originally Posted by Justin..
I checked out other French exhausts and there is another Oreca exhaust in steel (inox) for Grp N, and another for Grp A (2"). There were some alternative manifolds as well but at about £450 they are too expensive.
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31-03-2010, 21:42 #56Forum User
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Mines LOUD but not stupid, very happy with it.!
Makes some very loud bangs at 4k off and on the throttle.......
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01-04-2010, 00:24 #57Forum User
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Excellent, I want 4k pops and bangs as then I dont need to rag the shit out of it to scare pedestrians and people with their windows down on the motorway (love doing that). Originally Posted by Evogone
Mines LOUD but not stupid, very happy with it.!
Makes some very loud bangs at 4k off and on the throttle.......
Right. GOT A MEGANE MENIFOLD NOW AS WELL :D
It will do.
So: Manifold - bespoke d/p - Grp N 2.5" exhaust with no CAT.
I want: not too much noise at low revs for pootling about, flames, and pops etc at mid and high revs and d/p as far away from driveshaft gaiter as poss...probably worth heat wrapping it tbh.
This should solve any gas flow restriction I have in time for my mapping session?
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01-04-2010, 07:42 #58Forum User
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Fit the exhaust before mapping as mine has a slight flat spot at 3-3.5k...
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01-04-2010, 08:03 #59Founder
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dont forget u will need a cat on come mot time
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01-04-2010, 08:30 #60Forum User
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Friendly mot tester of love.
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