Cat removal, worth it? - MVAgusta.net
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post #1 of 39 (permalink) Old 05-10-2014, 07:46 AM Thread Starter
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Cat removal, worth it?

Hi my name is Darren and this is my first post. I have just bought a 2012 1090rr. My god they are a beautiful bike to look at. Not only the best looking naked by far but I think nicer than most fully faired sports bikes. A true work of art.
Just wondering if any one has removed the cat and still used the stock mufflers. Does it make much difference to the performance and the noise of the bike? Usually I hate stock pipes but the ones on the MV are actually very nice to look at. So I would be happy to leave them on if I can get a bit more exhaust note out of it by removing the cat. I don't want stupid loud just a bit more beef to the exhaust note.
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post #2 of 39 (permalink) Old 05-10-2014, 08:47 AM
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Welcome to the forum and MV family Darren. That mod is one of the best you can do to improve looks even more, and reduce heat. It does cost a bit as you have to replace headers and mid-pipe. Don't let the others get you into putting a stubby pipe on, the original twin pipes are great.

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post #3 of 39 (permalink) Old 05-10-2014, 02:55 PM
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Originally Posted by QldMV View Post
I would be happy to leave them on if I can get a bit more exhaust note out of it by removing the cat. I don't want stupid loud just a bit more beef to the exhaust note.
Mine is set up as you describe + the air box restrictors are removed so you can here the true MV sound.

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post #4 of 39 (permalink) Old 05-10-2014, 04:14 PM
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It would really be nice if we could do the decat without having to worry about the local police pulling us over for excess noise or illegal modifications...
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post #5 of 39 (permalink) Old 05-10-2014, 04:31 PM
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You can do the decat and not increase noise. Jus use the standard slip-ons.

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post #6 of 39 (permalink) Old 05-10-2014, 04:42 PM
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post #7 of 39 (permalink) Old 05-10-2014, 05:19 PM
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I'm just thinking outside the cat-box....

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post #8 of 39 (permalink) Old 05-10-2014, 06:13 PM
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G`day Darren and welcome,
I removed the cat on my 05 750s and the exhaust now has more "snarl" to it without being much, if at all, louder. There is also more burble on down shifts and throttle overrun which is quite satisfying. An additional small benefit is weight saving and rebound adjuster accessability. On yours though it will require either replacing or cutting your headers. They do look better without that great can hanging underneath and catching road gravel and small birds (another story). Check the for sale section for cheaper decat pipes.
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post #9 of 39 (permalink) Old 05-10-2014, 06:44 PM Thread Starter
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I am looking at cutting the standard headers just in front of the cat and getting some joiner pipes made up by a local guy who just does bike exhausts. I want to keep the original mufflers so the bike looks "standard" so I don't get hassled in theory. Not really chasing more performance as these bikes don't exactly need it. I will let you know how much the guy wants to do the job and hence whether I go through with it. I've come from a v-twin tuono with factory titanium race pipe and chipped ecu. Pretty hard noise to beat IMO. So I want my MV to sound as awesome as possible with stock mufflers for that engine configuration and to get as far away from the sound of a jap bike as possible.
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post #10 of 39 (permalink) Old 05-10-2014, 08:30 PM
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My brute 750 was de-catted with stock pipes. Miss that bike. Here's how she sounded. I'm sure a 1090 would sound even better.

http://youtu.be/PIKeXBNQya8



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