how to replace piggies to get original exhaust condition...

[squirrel9]

Bought 1500 standard and later figured out, piggies has been cut ???
So having fullface helmet and screen, I feel after 1h that my head is like inside of subwoofer.

As i do not have cut piggies can I just weld some other similar tubes to replace these piggies? Maybe it gives same result as with original piggies... and I do not suffer that awful subwoofer feeling.

Thanks!
Tom

[hubcapsc]

If there's enough piggy-stub left, there's a size of copper plumbing line where
the couplings fit to allow you to re-extend your piggies with a piece of copper
line. Someone posted some pictures, maybe they'll see this...

Hope you don't find that the PO also drilled the baffles... you can stick a small
rod or dowel down from where the piggiy was and if it keeps going very far,
stuff has been drilled out...

Here's the pipes that came on my bike... there was enough piggy left to re-extend
them, but for these pipes that would have been kind of like re-arranging the deck
chairs on the Titanic... 



-Mike

[squirrel9]

Thanks for answer! Actually bad that PO has cut piggies very close to canister so I imagine that probably only welding can be solution for extending... Seems no bafflers drilling has been made.

Just question, has anybody tried to extend/reinstall piggies via welding solution?
Or other not expensive solution how to elliminate that drone effect what is annoying on longer trips?

Thanks!

[Gear Jammer]

The originals were welded, so I don't see why you couldn't go back and do it again.  I'd make sure the area was ground down to below the crud to get a good bead.

[Challenger]

I welded 3/4" tubes back onto my I/S mufflers that the piggies had been cut off flush, the closer you get the pipes to the end of the tip the less drone you get. the baffles were drilled also, but that has no effect on the irritating drone.  Good luck.

[R J]

MarkT at   http://www.horseapple.com/
also has some piggie plates he will sell you, then just replace your old ends.

You will have to call him about them, they are not listed on his website.

 

[BF]

MarkT at   http://www.horseapple.com/
also has some piggie plates he will sell you, then just replace your old ends.

You will have to call him about them, they are not listed on his website.

 

What RJ said.  Contact MarkT via his web site.  He cuts the end of the cans off with the piggies from pipes he modifies and saves the entire end of the pipe with the piggies intact.  He sells a set of "piggie plates" for around 30 or 40 bucks if I remember right.  You can get either a set of standard/tourer piggie plates or a set of interstate (longer) piggie plates. 

[Walküre]

I went with MarkT's piggy plates. I think they were under $35, shipped. They are the entire round back plate, with the piggy's in place. I went with Interstate pipes, so the piggies are different than the standards, so decided to change them. I like quiet - REAL quiet! As in "sleeper" quiet.

It was easy to do - I cut the stock standard piggies off flush with the plate, ground it down a bit, and ground around the outside, to make sure I got a good weld. Cleaned it up REAL good with a wire  brush, then some acetone, I happened to have. Probably overkill, but I'm a careful kinda guy. Then I tacked the plate in place, 4 spots around the outside, and then stitch welded it the rest of the way. Bulletproof, leakproof, and quiet! I LIKE it!!

For the cost, even if I had to have someone else weld it, I don't think I'd go any other way.

Unfortunately, I got excited doing them, and didn't get any really good pictures.

Roger

[Ricky-D]

I doubt you will notice much improvement replacing the piggies if that is all that was done to your exhaust system to begin with. An extra six or so inches of the small diameter pipe I feel won't change the drone noticeably.

And on the other hand, if the insides of the muffler section has been modified, such as drilling or other, you may find again that the drone will still be present in close to the same amount by only redoing the piggies.

I am not trying to dissuade you from doing a retrofit to you exhaust system but only that you may not find the result adequate, from what you propose to do.

***

[Walküre]

I doubt you will notice much improvement replacing the piggies if that is all that was done to your exhaust system to begin with. An extra six or so inches of the small diameter pipe I feel won't change the drone noticeably.

Actually, you probably WILL, from the guy who DID EXACTLY THAT!! I had a drone, when I had the shortened piggies, with the Interstate tips (I needed to shorten the standards, because of the up-down configuration, as opposed to the side to side of the Interstate). THAT'S why I got the "piggy plate" from MarkT - and it eliminated the drone, 100%. It is also quieter, as stated, I think, because it moves the exhaust back to the rear of the tips, instead of resonating the last 6-8 inches, when they are cut off. I had several speeds, that I just couldn't stay at, because the drone was prevalent at those speeds - now, all speeds are the same.

Hard to argue with success...but, someone always will...

If they are drilled as well (mine weren't), that will need to be addressed.

R

[BF]

I believe that the drone comes from the resonance of the exhaust in that empty exhaust tip.  That's why mother Honda put the piggies on there in the first place......to get that exhaust out to the end of the exhaust tip so it wouldn't resonate inside that empty tip.  

IMHO, I'd bet that you could drill out all 12 baffles, but as long as you extent the piggies back out to the end of the exhaust tip, it won't drone.  

To a certain extent, I've proved that to myself.  I've cut the piggies on mine....and went all the way and did the Ragnar cut on them several years ago.  With any helmet that covers my ears, it drones horrible.  

I've been looking for a way to elimate that drone without having to buy a replacement set of pipes.  As an experiment, I took the exhaust tips off both sides and went for a ride.  No drone.  

That proves, at least to me anyway, that the drone comes from the inside of the exhaust tips.....not from drilling out your baffles and such.  

I've got a set of Interstate piggie plates laying around in my garage......just gotta find someone to weld them on for me.  

Get those piggies back out to the end of the exhaust tip....regardless of how long they are, and the drone should be gone.  

[SPOFF]

I have shortened piggies on a ’97 standard. I also have the triple-tip exhaust tips that were available back then. I discovered that a certain size of fiberglass pipe insulation fits tightly over the piggies and the outside of the insulation also fits tightly inside of the three pipes that make up the triple tips. Bottom line, I ended up with six glass pack exhaust tips about 6 inches long. The bike is much quieter that stock, at no throttle it’s dead silent. Lots of fun for slipping through small towns at 60 mph. 

[sugerbear]

cut my piggies off of my 99. left enough to put back together.
with the piggies cut a bad drone. put the piggies back on (saved them), no drone.
i know it works too. i helps to speak first hand.