Home spun exhaust.

After being disappointed with the sound and all round performance of aftermarket pipes I decided to make my own.
Using a damaged set of 2" single wall pipes, a two into one stainless steel y-piece and a Delkavic stainless steel silencer of 2" bore I have made one.
Now its not going to be everyones cup of tea but I am very pleased with the sound and performance with or without the baffle. The looks are not the slickest but I will be making a couple of s/steel covers for the clamp etc.
All nuts, bolts and fasteners are s/steel apart from one car type clamp but I have ordered a s/steel M8 clamp to which I will fasten a cover to on fitting ...
Photos taken today at MOT to follow, once I figure out how ...

sounds good

Interesting project Ross, look forward to the seeing the photos.

Good work. Not sure about the look, but it's your bike to do as you wish.  So, how does it sound?

It sounds great, like a really low rumble on tickover rising to a burbling speedboat kind of sound and then ending up like avtwin sports bike like an SV or VTR at high revs.
Performance is really smooth and definitely up on standard or straight through pipes that I have tried ...

This is a first attempt, as the single pipe is 2" it will be easy to find another silencer that might look more cruiserish ..

AND does it effect engine performance at all with you new setup the air flow looks as if its been restricted by at least 50% if not more!

Performance is better...from 30 to 100 (indicated) in third it is so much quicker and smoother, pick up in lower gears better and topend an indicated 120 but bear in mind it has the vs1400 conversion and the weather up here today is cold n sleety I will get a better chance to try some roll ons at a later date.

I have a s/steel cover made up for the rear clamp which will be replaced with a heavier stainless steel one. This clamp is also attached to the original hanger.

As regards exhaust flow, if you look at large capacity vtwin sports bikes that have been converted to single silencers they don't seem to need anything with a bore of more than 2" ...I wanted the larger inside diameter of 2" downpipes but with the back pressure and outlet size of the originals ..

I bet that sounds very deep and rumbly , I didn't like the look at first but the more I look at it the more I like it, I'd probably shorten it by a couple of inches, but that's just me, looks good Ross and like I said, I bet it sounds really deep and rumbly 

Yep nice n deep, wife described the sound as the burble you get from underwater boat exhausts ...I bought the silencer on ebay very cheaply as it was brand new and had never been fitted (Suzuki SV) ..I'm currently on the look out for a stainless stubby to shorten it by about 3 to 4 inches.  I will at some point shorten the y-piece by about 1.5 inch each end ... but I can't emphasize enough how much better all round the bike goes ..can only guess that I have stumbled on a great air intake, exhaust and fuel map combination...

rossmofo wrote:

 ..I'm currently on the look out for a stainless stubby to shorten it by about 3 to 4 inches. 

There's video's on how to shorten end cans on youtube Ross, quite easy looking at  them.

I have shortened a couple before, usually carbon ones, great if you buy a damaged one cheap and remove the damaged end and fit a new rivet band,  I just don't want to butcher this can in case I don't like the resulting sound as I love the nouse it makes as is, and it passes Mots , I will try a stubby and if I don't like I'll just sell it on ..

At the end of the day, this was originally just me wanting to tinker and at worst I have a corrosion proof exhaust for winter use ..

Having looked again it's growing on me. Any chance you could post a video so we can hear how it sounds?

Looks a good job like it till it gets to the can    whats it like without the can? each to their own though

Its very loud without the can, much more sharp, less rumbly more bangy ...I will take a,wee vid and stick it on YouTube tomorrow if the snow stays off.

rossmofo wrote:

At the end of the day, this was originally just me wanting to tinker and at worst I have a corrosion proof exhaust for winter use ..

That makes it a win win in my book    , I'll look forward to the video, I bet it sounds great!

hello mate there is an end can/cans made by supertrap they can really boost performance and they look cool they have disc's at the back that you add or take away depending on whether you are going for performance or sound to get it spot on you would be best to get it on a rolling road if using a supertrap if I remember right they where originally made for flat trackers and drag bikes and they sound the NUTT'S I was thinking of getting some down pipes made up and using supertrap end cans meself. OMG if it sounds anything like a SV1000 that's been fitted with aftermarket end cans then? well
fucking awesome mate I think that an SV1000 with the right end cans is one of the best sounding bikes I've herd on the road (ever). 120 what hahahhaa fuck what it looks like my god man you've just created the millennium falcon of a bike sweet hats of to ya

Aye supertrap make awesome silencers (nothing silent about them) ..loudest bike I ever heard was an old vmax with a supertrap exhaust) ... any speeds mentioned are taken from the speedo so are not that accurate but defo up on what they were before .SV's and TL's etc sound great at full chat..

I like the fact you have a home assembled exhaust but this is the bit that caught my eye and I am having trouble with:
You are happier with your pipes performance over the performance attributes of aftermarket pipes?
What pipes are you saying yours are better than?
how and why do you think yours are better than aftermarket pipes and did you adjust your FI module when either putting in or taking out the baffles?

rossmofo wrote:

After being disappointed with performance of aftermarket pipes I decided to make my own.

Now its not going to be everyones cup of tea but I am very pleased with the performance with or without the baffle.

Interesting bit of tinkering . 

 I look forward to hearing the rumble when you get the vid uploaded.

 It is my eyes or do the heat shields have skulls cut out? Nice touch

Keith81 wrote:

It is my eyes or do the heat shields have skulls cut out? Nice touch

Oh aye! Now that you've pointed them out I think you're right.

Like some other members I'm not too sure on the look, all credit to you for designing and constructing your own exhaust system that look well thought out and pretty well made. The look or how they preform only has to suit you and nobody else.

The fi module has two maps loaded on, one from healtech and one from powercomander,(converted to healtech,  helpfull guys healtech)  the bike as it sits with the baffle in runs spot on with the healtech map ,with the baffle out either map is fine but the powercomander map is better in the low gears . Don't think I'm all about the top end, I love the way it drives now through the entire rev range, the other pipes I have tried were Highway Hawk fat pipes,  original with honest abe and a set of v&h drag pipes, out of them the honest abe had the best top end but the other two accelerated much better, but put the baffles in the drag pipes and I didn't like the sound.
I am currently looking at a power comander map for a two into one pipe to ad as my second map, see how that goes.
Just a pity the weather is so bad, id like to do some roll on tests in all gears.
I understand the looks are a little crude compared to what we are used to seeing on our bikes but my aim was basically just to see if it would work, mot tester was happy to pass it (with baffle in) and it didn't fall off on way home ..funnily Dave it was something you mentioned on here about another members two into one pipes that gave me the notion to try ..

The skull heat sheilds were from my other pipes I sold, they were just cheapies from china, about nine quid delivered I think ..
I will be changing the end can to something a little more sleek when I find one on ebay etc...

I love stuff like this, nice one ross   Curiosity killed the cat, how do you transfer a map from one FI onto another FI. Sounds great cause power commander have loads of predone maps 

Got to say that exhaust would look friggin ace powder coated black. I didn't comment on the way it looked at first as I needed to see it a few times because I liked it but wasn't sure why. Having thought about it, it has some serious potential & a one off exhaust is a real bonus on any bike.

Crash you just copy the powercomander map,email it to tech support at healtech and they convert it and email you theirs back, as simple as that. Healtech are such a great company for customer support and a real find thanks to Dave.
Dave I am always buying stuff from ebay so I am watching some stubbies and some carbon cans but the powedercoating sounds great as I love the matt black acrylic look too...I'm dying to get bike out and video it but the rain is horizontal here at the moment ..

Ok took a video with my phone but the mic must pick up more on the high pitch side as you can hardly hear the true sound of the pipe ,even when you remove the baffle. I will put it up anyway.
Just for accuracy sake, I should point out that I didn't fabricate the y-piece myself, I was gonna do it at work but found I could get it made and delivered cheaper than I could buy the material .. 2mm polished stainless made to my specs for less than £25...ordered it late on the Thursday it arrived first thing on Monday morning ..excellent service ..

Listened to the video again, sounds like a vw beetle in the vid but not in reality ...

I will post a better one taken in daylight when I can get a dry ten minutes ..

Sounds good Ross! very deep and rumbly   I can say that with confidence because it sounds very similar to my old SV1000 and the video's don't do them justice.

Yeah simbo the Suzy 1000 vtwins are awsome engines, I briefly had a raptor, sadly it was a pile of shit and was returned and money refunded but when it was going the engine was superb and imho sounded better than the standard 916 ..I might try doing just an audio recording see if I can get a more realistic recording .

Ross, I think the problem with the audio is caused by the mic being too sensitive and causing distortion. Try again outside with the camera further away from the bike and you should get better quality recording.

Nice one.  I have been playing with the same idea if the beans allows.
But personally I would use a carbon can and angle it up slightly so the sound is blowing directly
out back and not into the ground. But that's just me.

Well after a week of ebaying I'm no further forward other than stainless fastners like dome nuts and button headed bolts have been fitted and a s/steel cover being fitted over clamp,.
Still it does go bloody well (baffle out) .." />  " />  .

Looking better all the time, have to agree, a good sounding bike   can sound like   on the average phone/camera.

That looks tidier 

I'm still on the look out for another silencer, maybe more like a megaphone type ..M4 moto gp type in black would do nicely ...

you can pick up cheap but very effective end cans from SIMMI EXHAUSTS I've had several in the past and could see a difference in power acceleration and top end as soon as exhaust was fitted (especially on 600cc bikes) , the bloke makes them and does a real good job on all the welds.......they have a removable baffle and normally come with a link pipe although you probably wont need that. you can tell him how long you want it made IE 200mm, 250mm, 300mm, 400mm, 450mm......... anything below 400mm wont be marked as road legal (who cares lol) he also makes them for moto 500's on the race track's and has history in bike racing. I will get the number for you and post it later should you or other members (with other bikes) want to contact him  about end cans. There sales & after sales service is fantastic or always has been for me

This any good Ross Black Megaphone

Sadly not Harry, inlet size too small and overall length too long ... I had a Simmi stubby on my ZX7R that I ordered through Ebay many moons ago, great service and well built can. I'm just too tight now to spend anywhere near the cost of a new can, I got the one thats on for £20 and it was new in box, I'm watching a few potential bargains just now but I'm happy to run the bike as is in the meantime cos,when I'm riding I can't see it but I can hear it ...

well just in case the number is 01207 438489 or 07787130099 and that should be Jeff.
dunno what the inlet is but I got a simmi exhaust can in me shed off a fzs 1000 lol I don't need it be honest the fricking things starting to get in my way hahaha