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Exhaust questions

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RedDogDarren said:
All personal preference. You just said money is an issue so I believe you have answered your own question. Slip-on for looks and sound.
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The 06+ R6 features a mid muffler (and two cats), even removing the slipon and running with NO muffler only increases the sound 4% :(

inreb said:
You'll never get rid of that 4 cylinder sound and with an aftermarket system you'll just amplify it. Buy a proper motorbike.
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Leo Vince and Akrapovic both can add a deeper throatier sound to the normal whiny sound of the R6!

drey said:
the M4 mid pipe with a GYTR slip on.
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I would highly highly suggest against that combo. The GYTR slipon is designed to be run with the stock catbox/midmuffler in place. If you run it on a midpipe it'll be SUPER loud, really tinny/raspy and your bike will idle like poo.

I would recommend this slipon http://www.ebay.ca/itm/2014-R6-Leo-...013-/191651750001?hash=item2c9f55a071&vxp=mtr

with either danmoto midpipe if you don't mind taking a hacksaw to your stock headers: https://www.dan-moto.com/DM_INT/index.php?main_page=product_info&cPath=142_143&products_id=1067

or if you want to keep your stock headers intact get MJS headers (includes welded on midpipe, both cats removed): http://shop.mjsperformance.com/prod...1C4.m1plqscsfapp04?productId=210&categoryId=3

A new chain and sprockets helps a bunch too with more aggressive gearing (-1/+2 is nice).

No need to buy a Power Commander or SpeedoHealer, the fuel map can be loaded into your ECU and the speedo can be corrected too.
 
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johnscruiser said:
The 06+ R6 features a mid muffler (and two cats), even removing the slipon and running with NO muffler only increases the sound 4% :(

Leo Vince and Akrapovic both can add a deeper throatier sound to the normal whiny sound of the R6!

I would highly highly suggest against that combo. The GYTR slipon is designed to be run with the stock catbox/midmuffler in place. If you run it on a midpipe it'll be SUPER loud, really tinny/raspy and your bike will idle like poo.

I would recommend this slipon http://www.ebay.ca/itm/2014-R6-Leo-...013-/191651750001?hash=item2c9f55a071&vxp=mtr

with either danmoto midpipe if you don't mind taking a hacksaw to your stock headers: https://www.dan-moto.com/DM_INT/index.php?main_page=product_info&cPath=142_143&products_id=1067

or if you want to keep your stock headers intact get MJS headers (includes welded on midpipe, both cats removed): http://shop.mjsperformance.com/prod...1C4.m1plqscsfapp04?productId=210&categoryId=3

A new chain and sprockets helps a bunch too with more aggressive gearing (-1/+2 is nice).

No need to buy a Power Commander or SpeedoHealer, the fuel map can be loaded into your ECU and the speedo can be corrected too.
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This is all correct information, the leo vince SBK slip on and MJS headers is the route i took seemed a lot easier than chopping the headers for the midpipe and probably ends up being same price..

sound and performance gains where solid.
 
If you're removing the cat(s), then it sounds more like a downgrade to me.

Are you planning on running it into the ground?
 
Baggsy said:
If you're removing the cat(s), then it sounds more like a downgrade to me.

Are you planning on running it into the ground?
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The cats are in the headers. He's planning on just installing a midpipe, which only gets rid of the mid muffler, not the cats :)
 
drey said:
I've retired from the sewing game. Plus then I would need advice on what slip on would work best with said sewing machine
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Factory Singer Racing Full system.
 
Aftermarket exhausts for street are the most expensive way possible to achieve nothing or make your bike run worse. The noise is great if you want to give the OPP a real heads up to get the radar guns ready.
I have yet to see any slipon power increase claims actually verified, and all of the dyno graphs on websites are typically stock exhaust runs on cold engines, aftermarket exhaust on warm engines. Never more than one dyno run. Then the internet chimes in with placebo effects of 4%.
Even full systems require significant work and ECU tuning, port and injector upgrades, and the top end gain typically comes with headaches at the reality-based bottom end for street riding.
If you are getting tired of your bike, save the money and just buy a better bike.

Or, just keep adding thousands of dollars of progressive farkle, all eventually worthless.
 
OTOH, it's a hobby, bike can stand to lose a bit of power if emulating a race bike is important. It is.
 
inreb said:
OTOH, it's a hobby...
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Indeed. Emotionless robots don't have souls to be stirred by an uncorked I4 at 12,000RPM. Cold and utilitarian, their cage is more likely a Corolla than a Caterham for they see no need for anything other than the bare bones basic necessities required to get from point 'A' to point 'B' in their toaster -- er, appliance-like car. These folks don't care about ancillary benefits like weight reduction and the cleaner lines and less homely appearance of things like a Yoshimura compared to the giant, heavy cans often employed by OEMs.

Let's not even get into the basic joy one can have an a warm summer's evening wrenching on one's bike, no matter the perceived or actual utility. My guess is that they don't actually possess even a single open-end wrench and thus take the bike in for everything from an oil change to cleaning a fly-splatter off the windscreen.

Sometimes I wonder why some people even have bikes...
 
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That is why I asked what was the purpose of him wanting to change it, he was fairly clear that it wasn't for performance so it is his money, what do you care.
CafeRay said:
Aftermarket exhausts for street are the most expensive way possible to achieve nothing or make your bike run worse. The noise is great if you want to give the OPP a real heads up to get the radar guns ready.
I have yet to see any slipon power increase claims actually verified, and all of the dyno graphs on websites are typically stock exhaust runs on cold engines, aftermarket exhaust on warm engines. Never more than one dyno run. Then the internet chimes in with placebo effects of 4%.
Even full systems require significant work and ECU tuning, port and injector upgrades, and the top end gain typically comes with headaches at the reality-based bottom end for street riding.
If you are getting tired of your bike, save the money and just buy a better bike.

Or, just keep adding thousands of dollars of progressive farkle, all eventually worthless.
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CafeRay said:
Aftermarket exhausts for street are the most expensive way possible to achieve nothing or make your bike run worse. The noise is great if you want to give the OPP a real heads up to get the radar guns ready.
I have yet to see any slipon power increase claims actually verified, and all of the dyno graphs on websites are typically stock exhaust runs on cold engines, aftermarket exhaust on warm engines. Never more than one dyno run. Then the internet chimes in with placebo effects of 4%.
Even full systems require significant work and ECU tuning, port and injector upgrades, and the top end gain typically comes with headaches at the reality-based bottom end for street riding.
If you are getting tired of your bike, save the money and just buy a better bike.

Or, just keep adding thousands of dollars of progressive farkle, all eventually worthless.
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I can agree on some of your points but sometimes it's just nice to add to your already existing bike. I know that in the long run it won't matter too much performance wise but if done tastefully and properly I don't see a harm in it, I'm sure there are gains to having an aftermarket exhaust if you know what you're doing.

I don't plan on revving the **** out of my bike just because I have a can on it, never been my style, I'm not the type to draw attention to myself and quite frankly I don't race around everywhere when I'm out and about so i don't think I need to worry about the cops. Thanks for your input though.
 
Why does nobody ever mention the awesome Smell performance gains??? My bike smells 100x more bad *** than stock.
 
I changed the can on one bike simply due to the fact that the ****er kept burning me. Got a carbon fiber jobby that was way cooler to the touch, weighed a metric ****ton less than the stock pipe and it sounded good too.
 
jc100 said:
I changed the can on one bike simply due to the fact that the ****er kept burning me. Got a carbon fiber jobby that was way cooler to the touch, weighed a metric ****ton less than the stock pipe and it sounded good too.
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But but but.... its the most expensive way to make your bike run worse. The motorcycle encyclopedia on here posted so. :rolleyes:

Looks and weight for me is why I changed. The noise is a bonus and you won't believe this but it didn't make my bike run bad!?! Amazing eh
 
Roomie said:
But but but.... its the most expensive way to make your bike run worse. The motorcycle encyclopedia on here posted so. :rolleyes:

Looks and weight for me is why I changed. The noise is a bonus and you won't believe this but it didn't make my bike run bad!?! Amazing eh
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I was just happy not to have burn marks and melted plastic everywhere.....everything else was a big bonus.
 
Roomie said:
But but but.... its the most expensive way to make your bike run worse. The motorcycle encyclopedia on here posted so. :rolleyes:

Looks and weight for me is why I changed. The noise is a bonus and you won't believe this but it didn't make my bike run bad!?! Amazing eh
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That's great! How did your before and after dyno chart compare?
 
CafeRay said:
Aftermarket exhausts for street are the most expensive way possible to achieve nothing or make your bike run worse. The noise is great if you want to give the OPP a real heads up to get the radar guns ready.
I have yet to see any slipon power increase claims actually verified, and all of the dyno graphs on websites are typically stock exhaust runs on cold engines, aftermarket exhaust on warm engines. Never more than one dyno run. Then the internet chimes in with placebo effects of 4%.
Even full systems require significant work and ECU tuning, port and injector upgrades, and the top end gain typically comes with headaches at the reality-based bottom end for street riding.
If you are getting tired of your bike, save the money and just buy a better bike.

Or, just keep adding thousands of dollars of progressive farkle, all eventually worthless.
Click to expand...

On my new bike, a slip-on muffler was the quickest and least expensive way to lose 17 lbs, and I think it also makes it possible for the rear wheel to be removed without first removing the (stock) muffler (which is huge and is in the way). Noise level is very mild because I kept the catalyst and the stock butterfly flapper-valve gizmo. Don't care about power output, it doesn't need any more. Made zero difference to how the bike runs. Because I kept the catalyst, the exhaust doesn't stink.

I'm not one to normally advocate changing full exhaust systems (including catalyst removal) on street bikes but some of the things you are saying are BS. "Port and injector upgrades" just from changing an exhaust system? Uh, no. I've never heard of any bike that needed bigger injectors because you changed only the exhaust system, and it's certainly not necessary to fiddle with the ports in the cylinder head. There can be other reasons for wanting to do that, but it's got nothing to do with the exhaust system.
 
johnscruiser said:
The cats are in the headers. He's planning on just installing a midpipe, which only gets rid of the mid muffler, not the cats :)
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^^ Bingo!

I'd suggest getting a full system and get it tuned properly for an increase in performance, but if you're doing it for looks and a bit of weight reduction with 0 performance gain, then just get a slip on. Easy as pie.
 
Brian P said:
Uh, no. I've never heard of any bike that needed bigger injectors because you changed only the exhaust system, and it's certainly not necessary to fiddle with the ports in the cylinder head. There can be other reasons for wanting to do that, but it's got nothing to do with the exhaust system.
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If you want real power increases for racing, it takes the whole package to take advantage of the flow.

We're talking street bikes here, and even with a weightless mythical pipe at best you can figure a 3-4% weight drop in the total package.

For the cost of full systems, plus ECU flashing or ECU intercepts, you're much better off just buying a better bike.

People use all kinds of rationalizations of performance, but it's really about aesthetics and making more noise.

A zillion +1*

*+/-1

Kijiji is rife with ss600s with >$10K in "upgrades", on bikes that never see tracks. Just buy a damn 750.
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