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Discussion Starter · #1 ·
Just found a lowmounted muffler with a db-killer; MIVV.
Anybody ever tried them? Apparently they make one that´s street legal in europe.

Sound? Performance?

And one more dumb question:
It looks like you only get the muffler itself and you use the original pipes up to the muffler. Isn´t it usual that you get the whole system all the way from the engine to the muffler?

Have a look:
http://www.carpimoto.it/content/pro...on_muffler_Low_Mount_Street_Legal_TUV_app.htm
 

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You can generally get 4 types of exhaust systems for these bikes:
1 - Slip ons that replace the stock silencers/mufflers using the stock mid pipe.
2 - Slip on that mounts directly to the header (low mount).
3 - Half system that replaces the stock mid pipe and silencers.
4 - Full system with a header and either has its own midpipe or uses a low mount silencer.
 

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Discussion Starter · #3 ·
So this would be a low mount slip on then?
And all I would have to do is get it on there and go to the dealer for tuning?
No changing of pipes? The reason for asking is cuz I´m such a lousy mechanic :-D
 

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On 2007-02-22 09:14, Fenster wrote:
So this would be a low mount slip on then?
And all I would have to do is get it on there and go to the dealer for tuning?
No changing of pipes? The reason for asking is cuz I´m such a lousy mechanic :-D
bingo! :hammer: :-D
 

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Discussion Starter · #5 ·
So then what about these MIVV:s? I have never heard of them...not so strange maybe :-D
But is it anything good?
 

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The dealer can load the TORS (Triumph Off-Road Silencer) map. But it will not be perfect.

PCIII or TuneBoy and a bit of tuning on the dyno will get the most benefit from this system. This will be especially true if you ever decide to remove the blockage in the stock header collector.

I do not have any experience with the Mivvs. I have never heard them. But would expect them to sound a lot like the M4, but a bit deeper.

[ This message was edited by: Devious2XS on 2007-02-22 09:29 ]
 

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Discussion Starter · #7 ·
This is what the homepage says about tuning:

FAQ: Do I have to change carburetion? No just install and ride, you don't need to tune your bike.

?? Can this be true? Sounds strange to me...
Can it have anything to do with the dB-killers?
 

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Rule number 1:
If it doesn't require more fuel, it doesn't flow more air, and it doesn't make more power.

That being said, it can make a couple hp more and simply lean out the fuel curve a bit.

Almost any silencer for your bike CAN be run without tuning. The problem is that the stock tuning is already lean in the midrange.

Almost all aftermarket silencers will make close to the same power just by bolting them on. This is good for the look and sound many want.

At a later date you can add tuning and get performance gains. Or not. It is up to you.
 

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Discussion Starter · #9 ·
Okay just one more stupid question :-D

So my bike would run just fine with say this MIVV silencer both with our without the tune?

The only change in the beginnig would be sound and weight?
 

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That really depends on how you define "fine". But yes, the bike will likely run well with the system you mention either with the stock or TORS tune.

In my humble opinion, the STOCK mapping is very lean in the midrange. The TORS tune adds some fuel for additional flow in the exhaust with aftermarket silencers, but does not address the midrange.

This is why tuning the fuel and timing maps can gain impressive amounts of torque through the midrange and top end of the powerband.
 

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Discussion Starter · #11 ·
what would you recommend to gain some power in the midrange?

The problem for me here in Sweden is the volume off the thing..it can´t be too loud...is there a compromise?
 

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On 2007-02-22 11:06, Devious2XS wrote:
That really depends on how you define "fine". But yes, the bike will likely run well with the system you mention either with the stock or TORS tune.

In my humble opinion, the STOCK mapping is very lean in the midrange. The TORS tune adds some fuel for additional flow in the exhaust with aftermarket silencers, but does not address the midrange.

This is why tuning the fuel and timing maps can gain impressive amounts of torque through the midrange and top end of the powerband.
Last summer I rode with open cans and stock map. With wideband on a dyno the midrange was lean and the top end rich but the torque curve was very linear. The engine ran very nicely and I could not tell seat of the pants that there was anything wrong. Yes the engine will run and pull just fine with stock map.
 

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On 2007-02-22 12:09, Fenster wrote:
what would you recommend to gain some power in the midrange?

The problem for me here in Sweden is the volume off the thing..it can´t be too loud...is there a compromise?
Yes donate a bunch of ear plugs to the Traffic Cops!
That way your cans won't seem loud.
Or come to Malta, so far Cops don't bother us about cans.
 

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wow, i like it. i'm a little concerned that it would interfere with your heel though (i have big feet and wear boots all the time).
 

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Wow, Someone beat me to this. I just ordered one today in Titanium for my '06. I wanted something unique that no one had yet. I ordered mine from PJ over at PJsParts.com and got a great deal. Mine should be here in about two weeks, since he has them shipped direct from Italy. I will post pictures and make a sound file or video as soon as I can get it installed.

Today was the first time I talked to PJ and he is a stand up guy. He told me that they are the OEM exhaust maker for Aprila I think, and the quality is first rate. I am sure there are plenty of dealers in Europe, but State side I know PJ has them.

His advice was to buy the Type Approved model. They are the same can but the non-race one has a Db-killer installed. The Db-killer can be removed by taking out one small rivet and you have a race can, and you can put the Db-killer back in using a single screw or fastener of your choice. There is a few pictures of the carbon fiber version on the MIVV site, and also a video with sound of a Triple on a Dyno with the GP can on it. The one in the video has a longer extension on it than the one in the picture, but it IS a short low mount exhaust.

Check out YouTube for some videos of the MIVV.



http://www.pjsparts.com/catalog/

http://www.mivv.it/moto_usa/prodotti_sportline_case_apri.asp?codice_marche_moto=11
 

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Discussion Starter · #18 ·
Quote:
wow, i like it. I'm a little concerned that it would interfere with your heel though (i have big feet and wear boots all the time).

Bahh...who needs brakes anyway? :-D :-D :hammer:

Yes they look and sound very good. And above all reduce the weight a lot. Good price to!
I would just hope they run good with the TORs tune since I already got it installed. :)

Well first things first, i still got the test the TORs that I got from Spendthrift.


And yes HooliganJ, I would very much like to see pics and sounds from that titanium can! :-D
 

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HooliganJ,
Have you got your Mivv gp pipe yet?
The reason I ask is because I've got the carbon one coming in a week or so & I'm interested to see how easy the fitting is going to be.

Gazwire
 

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It will be delivered today! I will be installing it this afternoon after my shift is over. It's raining in Denver so no rides today but tomorrow I will be riding. I will post some pictures tonight. I will give some progression shots.

I have a friend with an FZ1 and his went on very easy, and all parts were a perfect fit.

More to follow......

[ This message was edited by: HooliganJ on 2007-03-15 11:27 ]
 
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