"Quiet Insert" Mod for Leo Vince SBK: to make it louder?

**Hotpoker** · 22nd April 2010, 22:17

Will shortening the pipe on a "quiet insert" make the exhaust louder?

Any ideas appreciated.

**Hotpoker** · 22nd April 2010, 22:35

Oh - and it is way to loud with the silencer removed.

**Sensei** · 22nd April 2010, 22:46

Yes the shorter the louder cut 20mm at a time then try

**steve_t** · 22nd April 2010, 23:39

Hotpoker, can u take a photo of the quiet insert? I know that the quiet insert for my can is better served by enlarging a central hole in the baffle end plate. Not sure if it's the same for the LV SBK one though

Edit: OK, found a pic and the baffle looks like the type that you can cut down in length to adjust the sound

**DIN PELENDA** · 23rd April 2010, 00:38

I lost my LV insert somewhere on road , now sound nice and loud, only when I ride with kid as pillion I wish I have it. I have to make something for it.

**vifferman** · 23rd April 2010, 18:09

My Satantune has two inserts - the quiet (standard) one I use for a WOF, and the everyday one which has no 'tail' on it. I've been riding recently with no insert at all, but the thing's got really loud.

**Hotpoker** · 23rd April 2010, 20:43

Thanks for the responses.

Vifferman - have you had problems with a loud exhaust when getting a WOF?

I had a pretty loud can on my previous bike and had no problem gettting a WOF: adimittedly that was only one though as it was <5 years old.

**vifferman** · 24th April 2010, 10:31

Originally Posted by Hotpoker

Vifferman - have you had problems with a loud exhaust when getting a WOF?

No, because I always put the quiet restrictor in, just so I don't have any hassles.
When I had the FahrtSturm, that was a different matter. Before the first WOF was due after I bought it, I took it to a testing station and asked about the zorsts, which had had the end caps cut out. The guy looked at the cans which had the complinace test info marked on them, revved the bike, said "These mufflers have been altered. You're not allowed to alter mufflers."
"So...that's a 'No' then?"
"Yup."
The bike was LOUD, as in LOUD.
When I rode past parked cars, EVERY car alarm went off.
When I rode down the street, EVERYONE turned to look.
What I did was get some restrictors made up - just 50mm steel tubes with concentric 25mm tubes that were flush with the back end and stuck inside the muffler about 100mm. Then I just cut off the inside bit, 20mm at a time, until it sounded OK. The restrictors were held in with high-temp silicon. Passed WOFs no problem.