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Author Topic: GV650C Exhaust  (Read 2659 times)

RoBch3

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GV650C Exhaust
« on: November 02, 2011, 05:01:43 AM »

Hey guys im from sydney australia and i recently bought a 2011 GV650C or some people may know it as a ST7. I want to get louder exhaust but am unsure what to do atm. I spoke to an exhaust shop and they said because the exhaust has the oxygen sensors they cant make a custom exhaust for it, it this true? He said if i make an exhaust for u it will throw ur sensor out and ur bike wont run well? I know of larry cook exhaust also on the net but i am unsure what his pipes will look like, sound like or even fit my model can anyone help???

Thanks for the help guys! ???
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josh1990

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Re: GV650C Exhaust
« Reply #1 on: November 02, 2011, 08:27:02 PM »

Hi mate, i am unsure of what pipes will and wont fit. I recently fitted a new pipe to my Gv650 sport with oxygen sensor and never had a problem, I will still take it to be dyno tuned to make sure its not lean or rich. There are also Leo Vince dual exhausts but as far as i know they are set up totally different to the bikes that came with the single system. Also the ST7 is a 700cc version where the gv650c is an ST7 with Gv650 motor.
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D4NG3R0USBR14N

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Re: GV650C Exhaust
« Reply #2 on: November 04, 2011, 10:22:06 AM »

I have recently bought a gv 650 limited edition and it has got twin Harley pipes on which are mega loud and i havent got any running problems.The pipes are standard only the mufflers have changed and look as though they fitted straight on.
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ziggy

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Re: GV650C Exhaust
« Reply #3 on: November 04, 2011, 06:52:44 PM »

I have recently bought a gv 650 limited edition and it has got twin Harley pipes on which are mega loud and i havent got any running problems.The pipes are standard only the mufflers have changed and look as though they fitted straight on.

Can you share some pics or video? Sounds awsome!
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wpetraska

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Re: GV650C Exhaust
« Reply #4 on: November 09, 2011, 04:27:30 PM »

I'm already doing a little research on this for you. The ST7 uses a larger diameter on the inside of the pipe so using an exhaust for the GV650 will restrict your exhaust flow. I don't know how much difference there is but I might be able to let you know.

I'm trying to go the opposite way and fit the ST7 exhaust on a GV.
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D4NG3R0USBR14N

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Re: GV650C Exhaust
« Reply #5 on: November 18, 2011, 11:21:29 PM »

Sorry i dont know how to put pics up
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tonyk2011

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Re: GV650C Exhaust
« Reply #6 on: November 22, 2011, 10:18:46 PM »

I recently fitted a Screaming Demon muffler to my GV650 efi 2010. I noticed the warmer i get it the louder it gets.. and its louder then stock muffler.
The muffler fits after the O2 Sensor and therefore hasn't caused any issues.
You might want to check to see if the exhaust flange at the end of the pipe (where muffler attaches) has the same 4 bolt stud pattern as the GV650 and if so it might just be a matter of a bolt on muffler.

Here is a link to the shop in Perth WA that i used. If you email or call them and give them the measurements they will be able to tell you what's going to fit.

http://www.screamingdemon.com.au/

Cheers - Tony.

"Stay Vertical & Ride Safe". ;D ;D ;D ;D ;D ;D ;D ;D ;D
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2010 GV650 efi - Sports Edition.
mods:
Screaming Demon Exhaust
Carbon Brake Pads frnt n rear
Alarm System fitted

josh1990

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Re: GV650C Exhaust
« Reply #7 on: November 23, 2011, 12:07:38 AM »

Tony, GV650C runs twin pipes so it will be a no go on the screaming demon pipe, there would be slim chance of them stacking on top of each other and one per cylinder would be too big anyway, sound like a fart in a can.
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