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Denippled my exhaust.. sounds horrible!!

Started by armoredpig, March 11, 2010, 04:20:09 PM

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armoredpig

Hello!  I read somewhere that if you cut off the moped nipple from your pipe that it would sounds a bit more agressive..  So I tried it and would like to warn you guys not to do it!

My exhaust now sounds like an angry frog trapped in a soup can  :icon_neutral:



Heres a video..
http://www.youtube.com/watch?v=VDQO9cogMtM

Guess that nipple was there for a reason..  Any suggestions as to how I may fix this?

I am sad.


tt_four

What nipple are you talking about? It still sounds pretty much like a GS to me. Maybe a little uneven, but either way I've never really considered the GS to be all that great sounding.

armoredpig

#2
Inside of the stock can, theres a smaller pipe that protrudes outward somewhat its about 3/4" in diameter and makes the can look like something off of a moped, so I cut off about 2 inches of it (mostly for looks) and now the exhaust has a lot of pop at idle (in a very conspicuous way)..

I might get used to it--but at the moment I'm kinda wishing I didn't do it  :nono:


EDIT:  Took it out for a spin and the sound is kinda growin on me  ;)

oramac

DRILL HOLES!  Start with three or four smallish holes in the baffles surrounding the pea shooter (nipple).  Enlarge the holes/add more until you reach the throaty sound you desire. 

p.s.  As it gets throatier, it also gets louder.  Beware.  When I had my '99, I completely removed my baffles.  I loved the sound.  My bike also had a Uni foam air filter, and was rejetted.
Something is wrong with my twin...all of a sudden it's V shaped!  Wait, no, now it's a triple!  ...and I IZ NOT a postwhore!

armoredpig

Ah I'm a little weary of drilling holes because I fear the rejet (idk how)  :embarrassed:

The bike is sounding a little... old school british if that makes any sense?

PachmanP

Mmmmh nipples.

ok I'll add something constructive I guess...sounds ok if not great, so lesson learned.
'04 F to an E to a wreck to a Wee Strom?
HEL stainless brake lines
15W fork oil
Kat 600 Rear shock
K&N drop in and Buddha jets
It wants me to go brokedie.

DoD#i

One solution: Look left (my present avatar). The infamous Soup Can Mod.

The pictures died on the thread. I haven't fixed them yet, but my avatar is one of them.

http://gstwins.com/gsboard/index.php?topic=42443.msg479098#msg479098

If you look up just one post in that thread, you'll see a more typical drilled-out exhaust. Mine had the whole rear baffle chopped out.
1990 GS500EL - with moderately-ugly paintjob.
1982 XJ650LJ -  off the road for slow repairs
AGATT - All Gear All The Time
"Ride a motorcycle.  Save Gas, Oil, Rubber, Steel, Aluminum, Parking Spaces, The Environment, and Money.  Plus, you get to wear all the leather you want!"
(from DoD#296)

ohgood

you know, there are plenty of opinions about aftermarket pipes just on gstwins, even a few guides about how others made their own carbon fiber duals.

don't ruin your stock setup. sell it pristine on ebay and pick up a jardine or v&h. easy cheese. 


tt_four: "and believe me, BMW motorcycles are 50% metal, rubber and plastic, and 50% useless

armoredpig





It certainly looks better  :)

I've changed my mind, I am sorta liking the denippled muffler. 

DoD, thats some fantastic thinking!  I'll have to try out your Soup Can mod later!

sveach

I'm changing mine back to the stock exhaust. I currently have an open exhaust. Well, it has a muffler, but the muffler is so big I can literally stick my fist in it. So it's basically an open exhaust pipe. It's fawking LOUD. I'll record some video of it and post it up before I switch back to stock...

I ran my bike with and without the muffler, and all the muffler did was tone down the raspiness of it...
2007 GS500F - 18k miles as of 7/15/2010

armoredpig

Yes please!  I wanna hear how that thing sounds!

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