Aluminium / alloy exhaust manifold on GK73a?

greywolfhunter · Post by **greywolfhunter** » Mon Jan 10, 2011 1:17 pm

Hi all, Was just wondering, does anyone else have an aluminium alloy manifold on they're exhaust? I've been browsing the forums more and it seems more and more apparent that this is not a standard item.

i've got a couple of other odd bits and pieces on mine but nothing as non-standard as this.

its a GK73A btw

Post by **thunderace** » Mon Jan 10, 2011 2:34 pm

I would have thought the possible issues with heat would rule out an aluminium set of headers

greywolfhunter · Post by **greywolfhunter** » Mon Jan 10, 2011 8:49 pm

me too, but it seems to be holding up quite well, But its an exact copy of the original ones, im just wondering if they were available as aftermarket parts or not, although i do quite love the idea of it not corroding at all

!

Andy · Post by **Andy** » Mon Jan 10, 2011 10:01 pm

greywolfhunter wrote:me too, but it seems to be holding up quite well, But its an exact copy of the original ones, im just wondering if they were available as aftermarket parts or not, although i do quite love the idea of it not corroding at all !

Any pic`s.....

Mon Jan 10, 2011 10:20 pm

LOL- take a look at thunderace's avatar (if thats what they are called) it is a end can from the very company that make the ally downpipes. If its the full system with original tail pipe the pipe is bent like a banana.

greywolfhunter · Post by **greywolfhunter** » Tue Jan 11, 2011 11:03 am

yea, thats what mine originally looked like till I chopped it up and welded a plated onto the end of it so i could fit a standard gsxr600/1000 can, Don't want to fail an mot on noise-related issues or get pulled

Will get a pic in a couple of minutes

sqweaka · Post by **sqweaka** » Thu Oct 20, 2011 2:03 pm

think ive got an alloy exhaust on my 400 bandit, not sure if its original to the bike or not

amorti · Post by **amorti** » Thu Oct 20, 2011 2:08 pm

BEET are known to have made alloy systems for various hondas. To my certain knowledge nc27 and nc30, so probably for the whole range since nc27 is relatively obscure.

Can't see why they wouldn't have made one for Suzuki too.

That little mid-silencer is weird! If it were on a more modern bike you would think it was a clumsy attempt to fit an inline catalyst!

edit: thinking about it, I reckon DIC also made alloy systems? that's the ones with the banana shaped cans.

sqweaka · Post by **sqweaka** » Thu Oct 20, 2011 5:28 pm

ive tried a magnet on the pipes and it didnt stick, does that confirm they are alloy?

amorti · Post by **amorti** » Fri Oct 21, 2011 2:10 pm

sqweaka wrote:ive tried a magnet on the pipes and it didnt stick, does that confirm they are alloy?

Some stainless steels are not magnetic. There are ways to tell, and anyone who knows what they are looking for will recognise instantly.

Stainless usually is shiny, but goes brown with time and heating. Alloy is softer if you tap it with any tools it will scratch. The welds on alloy can't usually be mistake for those on stainless.

Show us a close-up of the welds on that mid silencer, it should be obvious enough.

Aluminium / alloy exhaust manifold on GK73a?

Aluminium / alloy exhaust manifold on GK73a?

Re: Aluminium / alloy exhaust manifold on GK73a?

Re: Aluminium / alloy exhaust manifold on GK73a?

Re: Aluminium / alloy exhaust manifold on GK73a?

Re: Aluminium / alloy exhaust manifold on GK73a?

Re: Aluminium / alloy exhaust manifold on GK73a?

Re: Aluminium / alloy exhaust manifold on GK73a?

Re: Aluminium / alloy exhaust manifold on GK73a?

Re: Aluminium / alloy exhaust manifold on GK73a?

Re: Aluminium / alloy exhaust manifold on GK73a?