Custom Exhaust Manifold

[Guest greavesy7]

Who makes good exhaust manifolds ??

[MarkBzero]

The best in the Midland's I would claim Ashleys Exhaust http://www.jaex.co.uk/

 

I think it pure art, and good news they will give you two invoices so the other half will never know the cost.

 

Done such a good job I asked them to do the silencer as well.

[Guest greavesy7]

Cool quite close to me then.

[emptyat]

My eldest son bought a 205GTi with one of their manifolds and it split on a weld. They were extremely helpful and repaired the manifold at no cost even though he hadn't bought it from them originally. So top marks for customer service!

[agent_zed]

out of interest they look like they are mig welded? i thought they would have tig'd them. Not that it makes a difference to me i only question as i've just made my own stainless manifold and i can only mig weld so just wondered what the pro's do, figured they would prefer tig.

[PaulF2B]

What would be the "ball park" cost for a nice stainless system like the one on Marks Zero?

 

Would be a nice upgrade for mine

[Longboarder]

Sorry to be a dissenting voice but there are a couple of things to question on the Ashley exhaust. The bends are not mandrel bends and narrow a little on the short sides of each radius. The collectors join at slightly too acute an angle and will slow gas flow more than ideal. Secondaries seem a bit long in comparison to the primaries but I don't know what that engine 'likes'. Signs of a custom exhaust made with a mass produced approach. It is still a perfectly good exhaust. Most out there will be worse performers, but it could be improved on by someone making a genuine custom with individual attention to detail. Wether you would get a significant performance increase or the cost benefit would be worth it by going to a custom exhaust fabricator like Martin Keenan is debatable. The price jump would make your eyes bleed. (500-600 for the manifold and 300 for the silencer at least and could be double that if you go to Simpson!)

 

Nigel

Edited October 7, 2014 by Longboarder

[brumster]

The other point I would make with these guys (from experience) is that I suspect they're only interested in dealing with cars on the premises. I tried to get them to supply system parts off a detailed drawing and despite good initial response, after a couple of chasing emails I gave up and concluded I was too much hassle for them. Now this is probably fine for your needs - if you can get the car to them I'm sure it's all fine and dandy. I just wish they'd have been a little more honest with me and just said "Too much hassle mate, sorry, not interested".

[Guest alexpink]

I was quoted £300 for a custom 4-1 stainless steel exhaust manifold from SA Fabrications near Leicester. Having seen some of their previous work it seems very good, however they do need the car to work on.

[fry61]

The exhaust above is good but this is poetry in steel.

[steve in stockport]

Adam, have you tried looking at one of the companies who already do bike engined kits?

I'd have thought they would have a manifold that will be what you're after

[Guest peter2b2002]

i had mine made by a chap near Tingwick Bucks £400 but that was 10 years but he ago made it in 1 day all fully balanced

peter2b

Edited October 9, 2014 by peter2b2002

[MarkBzero]

£650 manifold and silencer, about 2 1/2 years ago. I had to take the car there to mock up. They actually put the first manifold in the waste bin becuase they were not happy with primary length and one had a slight flat spot, good guys.

[Knock-on]

Speaking of another 'Ashley', you can always get a kit and weld it yourself.

 

http://stores.spencerashley.com/manifold-kits/

 

For example, all the components needed for a 4:2:1 including manifold, downpipes, 4 to 2 collector, pipes and 2 to 1 collector into the silencer pipe will cost £95 for a Zetec. You can then arrange and weld at your leisure.

 

I have one and it's fine.

[speedtripledan]

Martin keenan did mine, the performance figures speak for themselves. All for £650 fitted