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Discussion Starter #1
Hello, I'm new to the forum (but not to motorcycling);

I recently bought an used '07 sv650 in good condition (to complement a '13 Yamaha Super Tenere), that came with an M4 aftermarket pipe installed; it projects a deep rumbling rolling thunder, which, according to many rider enthusiasts, apparently brings out the best of what this motor has to offer.

However, as a rider of about 20 years, I don't adhere much to the 'loud pipes save lives' motto; in fact, I find loud motorcycles quite annoying sometimes. While this particular SV650 isn't as loud as some of the other motorcycles I hear blasting around town (I can ride it low rpm when I want to keep it down), I don't really care that much about the marginal HP gain, if it means annoying other motorists when I'm hard on the throttle.

Am I crazy to want to return this deep sounding beast to the stock pipe setup? I admit, on the freeway, the M4 exhaust gives me more of a presence when I'm cruising along at 5k+ rpms..

Alternatively, is there some way to keep the M4, but baffle the sound a bit more?

Otherwise, I am quite enjoying the ride.. it's such a nimble and deceptively quick machine

Thanks!

K

Oakland, CA
 

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Maybe repacking the exhaust with new fiberglass mats will help with quieting things down. I'd give M4 a call and inquire about repacking service and repacking kit:
They also sell longer "quiet inserts" they call stage two.
I doubt the volume of your muffler matters much on the highway. It is pointed opposite your direction of travel. Then add a car's audio system and your bike won't be heard no matter what exhaust you're running.
 

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I generally run stock or quiet aftermarket exhausts on my street bikes. I do not enjoy calling attention to myself on the street with noise. My hearing is already starting to go even with wearing ear plugs when I ride.
 

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I prefer quiet as well but my '07 had a Yoshi on it when I bought it. I recently picked up the baffle Yoshimura makes for this particular can and it did a surprising job of making it quieter even though it is still a straight-through muffler. If M4 makes an insert I would look into that, it will undoubtedly improve things.
 

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random aside... do you wear earplugs? cause you should. (stock exhaust or aftermarket it doesnt matter, the wind is the thing that ruins your hearing)
 

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Discussion Starter #9
thanks for the advice everyone!
I think I'm going to try the DB Reducer Insert
(Also, yes I often wear earplugs anyways)
 
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