Ducati Monster Forum

Will riding my bike with no mufflers on it hurt the motor? I am only talking of leaving the cat or the "udder" on ther and just taking the cans and pipe off.

Its an 05 S4R if it matters

I have the mufflers off my bike now on my '08 S4RS. I'm running straight out of the cat. It's so frickin loud. I never really asked anyone if it was ok so I'm glad you did.

How long have you been riding that way? I just called a couple ducati dealers and they all said it probably wont hurt anything but it will run lean and run like crap.

How does your's run?

It runs ok I guess. Seems to have lost some power. I'll be putting them back on this weekend. My wife says it's ghetto.

LOL.. I is pretty loud. Just took a spin on it. may need some ear plugs. Think im gonna get an arrow system soon.

Yeah. That thing will wake every baby within miles. Just think Harley rider pay big money for that kind of noise. I'm waiting on the Boomtubes from Motocreations.

Brian

I took the udder off my '04 S4R to put on a set of Desmoworld Sparks, only to take those off three years later to put the udder back on without the stock cans.  I put some tips on the little outlets to clean things up and painted it all with black ceramic.

I think the bike sounds the same it did when I had the carbon Sparks on.  I've had no performance issues what-so-ever.  As a matter of fact, Monsterlover said my bike smells a bit rich when I gun it in front of him.

You shouldn't have to worry. 

I run open udder for ~3k miles so far. Aside from my headers leaking oil. runs fne. i am also waiting for the boomtubes, but the wait has been long enough that im looking to build my own.

TJR178, how much sound difference is there with tips?

I'd be interested in seeing your creation. I can't wait till the boomtubes are available.

I aquired most of the parts i need and drew it out. The only thing is, once i cut my current setup, theres no turning back. and if i run into fueling issues. im royaly screwed. I dont have $1300 for an ECU an $300 for a PCIII. And supposely Dimsport is no longer importing RB units as per moto4us.com but someone has challenged his statement. lol much much work to do young jedi.

http://ducatimonsterforum.org/index.php?topic=7819.0

It's teh awesomeness... Same thing going on my bike pretty soon...

I've been running open from the cat for a few thousand.
It's too goddamn loud and the bike runs a lot leaner. Down on power too.

I tried making custom baffles for it -- but I think the stock exhaust is going to go back on.

Probably nothing at all.  I didn't run the bike without them, but I'm sure the difference is very minimal.  Take a look:

(http://inlinethumb62.webshots.com/43133/2345500760067946947S500x500Q85.jpg) (http://good-times.webshots.com/photo/2345500760067946947hBIiEl)

Yea it is loud. I dont like it though, its not loud loud, its painfully loud. Sharp and hallow at some points.

El Matador, can we get a sound sample of that? That is kinda like a wanna be GP shorty! looks cool though! My exaust isnt going to be as pretty as that (i only have a arc welder, no tig or mig access anymore:( )

When I was running an open udder, I took the S-pipes and pointed them down towards the ground, then sawed them off at an angle.  For what it cost (nada), it actually looked pretty good. 

(http://farm4.static.flickr.com/3053/2702192540_2d2614e916.jpg)

I talked to Mark at motocreations about when we could expect the production set. He said he's next in line so it will be late Next month.

I did the same as Ivan.  S2R 1000 (not sure if it matters for a S4RS). 

Just after my 6000 mile checkup, and it's going in for the 12,000 mile check up this Thursday.

Couple of other S2R riders told me to leave the udder on.  Won't mess with the ECU or remapping.  Said something about after so many (like 50 or 60) the bike will reset itself anyway (running lean or rich).

It's loud - like bubbly loud at idle- but I love it.  The raw power sound reminds me of a late 60's muscle car.
Harley riders crane their neck to see what's coming down the road [cheeky].  It's a v-twin for sure!!!

thanks guys, I ran it all weekend without the pipes on it. just an udder. I ordered an arrow full system, when that gets here ill put it on but till then, its open udders.

yeah, its loud as hell, but who cares. Its cool.

on a side note, not sure if it has anything to do with the fact that I've been running with no mufflers or not, but I seem to be getting better MPG. I went 103 miles before my fuel light came on yesterday. Which is longer than usual, Ive had it come on as soon as 80 miles in the past.

Just thought id throw that out, My arrow pipes should be here this week so Ill see if it changes.