Stock Exhaust Question (Issue?)
10-26-2009 | 11:40 PM
#1
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Senior Member
Superstock
Joined: Sep 2009
Posts: 421
From: Woodland Hills, CA
Stock Exhaust Question (Issue?)
Hi All,
I've just replaced a banged up stock pipe with a used replacement I picked up cheap on eBay, and have run into something odd I failed to notice until the pipe was on the bike. The new pipe appears to be stock and match the old, except that the very end of the small exhaust pipe is short!
It doesn't look like there are any other alterations, holes, etc. in the pipe, and it sounds/runs OK, but the difference is annoying me.
Here's a photo of what I am talking about
(left is original, right is replacement):
Is this just a difference in the stock pipe from one year to the next? If not... Any ideas about why someone would cut it, and whether or not it could effect performance?
Tempted to just cut the other to regain some symmetry, but i thought I'd get a few opinions from people more knowledgeable than me first!
- Mike
I've just replaced a banged up stock pipe with a used replacement I picked up cheap on eBay, and have run into something odd I failed to notice until the pipe was on the bike. The new pipe appears to be stock and match the old, except that the very end of the small exhaust pipe is short!
It doesn't look like there are any other alterations, holes, etc. in the pipe, and it sounds/runs OK, but the difference is annoying me.
Here's a photo of what I am talking about
(left is original, right is replacement):
Is this just a difference in the stock pipe from one year to the next? If not... Any ideas about why someone would cut it, and whether or not it could effect performance?
Tempted to just cut the other to regain some symmetry, but i thought I'd get a few opinions from people more knowledgeable than me first!
- Mike
10-27-2009 | 07:05 AM
#3
Senior Member
Superstock
Joined: Sep 2006
Posts: 308
He's got stubby pipe syndrome! :-)
Oh there are so many ways I could turn this into jokes...but I'll stay serious.
I haven't had my stock exhaust in a long time, so I can't provide any serious commentary, but I have 1 suggestion and 1 idea.
Suggestion #1, is to ask folks here to check their stock mufflers and report back if they have a "stubby" pipe or a "long" pipe. (and if the 2 are different).
My GUESS/IDEA is that CALIFORNIA mufflers are the LONG pipe, and that 49 state bikes are the stubby pipe. Since you live in so-cal, Im guessing your VTR is a cali-spec VTR, and hence the "stock" pipe has the longer inner tube. Keeping going with this WAG(wild *** guess) is that you bought your muffler from ebay/outside of Cali. Hence the short stubby inner pipe on a 49 state bike.
Again...just a WAG, Bjorn could be right, and it could be a model year issue. Personally, I would NEVER have noticed it if you didn't point it out to me.
Oh there are so many ways I could turn this into jokes...but I'll stay serious.
I haven't had my stock exhaust in a long time, so I can't provide any serious commentary, but I have 1 suggestion and 1 idea.
Suggestion #1, is to ask folks here to check their stock mufflers and report back if they have a "stubby" pipe or a "long" pipe. (and if the 2 are different).
My GUESS/IDEA is that CALIFORNIA mufflers are the LONG pipe, and that 49 state bikes are the stubby pipe. Since you live in so-cal, Im guessing your VTR is a cali-spec VTR, and hence the "stock" pipe has the longer inner tube. Keeping going with this WAG(wild *** guess) is that you bought your muffler from ebay/outside of Cali. Hence the short stubby inner pipe on a 49 state bike.
Again...just a WAG, Bjorn could be right, and it could be a model year issue. Personally, I would NEVER have noticed it if you didn't point it out to me.
10-27-2009 | 08:12 AM
#7
evil man of nothing
MotoGP
Joined: Jan 2006
Posts: 4,493
From: Boynton Beach, FL
Don't mind me...in all seriousness that's interesting I've never seen/noticed that before. I actually kept my baffles after I hacked them out, and I'm proud to say I have LONG baffles 
Bought them off ebay awhile ago though so I don't know where they originally were from.
Bought them off ebay awhile ago though so I don't know where they originally were from.
10-27-2009 | 08:43 AM
#10
Thread Starter
Senior Member
Superstock
Joined: Sep 2009
Posts: 421
From: Woodland Hills, CA
Thanks for all of the responses guys! I should have known this question would be an easy target for size jokes. 
Little chance I can get something easy in there like a sawzall. It would probably end up makng a mess. I am thinking I might be able to get in there with a dremel and burn through a few cutting blades evening things up.
@RPV-Hawk - You are correct that it is a Cali bike and the replacement pipe is from elsewhere. I'd be curious if your guess is correct, but I suspect now it might have been cut by the previous owner.
@captainchaos - I live in a very quiet neighborhood... and am working to keep the wife convinced I bought a Sport Touring bike!
- Also... the anger is a normal side effect of SPS (Stubby Pipe Syndrome)
Little chance I can get something easy in there like a sawzall. It would probably end up makng a mess. I am thinking I might be able to get in there with a dremel and burn through a few cutting blades evening things up.
@RPV-Hawk - You are correct that it is a Cali bike and the replacement pipe is from elsewhere. I'd be curious if your guess is correct, but I suspect now it might have been cut by the previous owner.
@captainchaos - I live in a very quiet neighborhood... and am working to keep the wife convinced I bought a Sport Touring bike!
- Also... the anger is a normal side effect of SPS (Stubby Pipe Syndrome)
10-27-2009 | 11:25 AM
#11
Senior Member
Superstock
Joined: Sep 2006
Posts: 308
check both muffers for OEM stampings. I don't remember if the stock mufflers have Emissions stamping on them, but if they do, The CALI spec muffer should have something stamped on it to that effect. If one has it, and the other doesn't, that might answer your question.
10-27-2009 | 11:54 AM
#12
Senior Member
MotoGP
Joined: May 2008
Posts: 3,451
From: San Clemente, CA
And I'd be angry too if someone shortened my pipe.
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