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Ashley 6-2-1 Exhaust Manifold


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I've heard from some VR garages that Ashley ones are more prone to breaking. However quite a few people have said they are fine and really good. Find out if they have "flexi-joints" to keep them fairly independent to engine movement. If they do they should be pretty good. I have a stainless steel custom 6 branch with these flexy joints. Some say mild steel is more prone to breaking because it is slightly weaker than fully stainless steel... although with any 6 branch (whether mild or fully stainless) as long as you get uprated engine mounts (front and gearbox) it should be fine. I've kept my original one though just in case. Should give a good rise in top end power :)

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Yes, thats a raceland, I seeked the advise of the mighty Vince of Stealth Racing before I purchased mine, He said that he's seen some improvments over the stock one, but he strongly advises some decent engine mounts all round, as well as having heat proof matting around the down pipes.

Pete

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I've got one fitted that looks exactly like that Raceland one. I find with mine there is far more torque from 2000 revs onwards... although I have just had my chains and clutch done which could have something to do with it. At my last rolling road at Stealth (with just a Milltek cat back and high flow cat) I had close to 195bhp. My car as already said feels far more pokey lower down.

I'm getting a BMC fitted at Stealth at the end of the month and also a rolling road session - so should see what improvement a BMC and my exhaust manifold has made over my last rolling road figure of 195.

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