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Installation tips for slip on's

Yarvis

Cruisin' Guzzisti
GT Contributor
Joined
Jul 3, 2010
Messages
105
Location
NYC
I MIGHT be getting some new to me (pre owned, but new) Agostini's from a fellow I met thru the Net several months ago. He never got to place them on his bike as he was rear ended. In any event, what's entailed in installing them?
 
I would imagine just unbolt the original mufflers and install the new ones. When you get the clamps loose turn the mufflers right or left they might be stuck to the exhaust pipe. You should not need any sealant on the exhaust pipe when you put the new mufflers back on. They might leak a little exhaust where the muffler slides on the exhaust pipe but as carbon builds up it should seal. Or put some kind of high temp silicone around the exhaust pipe before you slide the muffler on to ensure a good seal.
 
Remove the heat shields. Loosen the clamp to the headers. Remove both bracket bolts, one under the folding passenger pegs. The mufflers are forced on at the factory pretty far, so it usually takes some lube and a block of wood (against the round muffler body) and a small mallet to remove (and an extra set of hands helps, but not mandatory). Do not bother trying to seal the mufflers, just slide them on and tighten.
 
Remove the heat shields. Loosen the clamp to the headers. Remove both bracket bolts, one under the folding passenger pegs. The mufflers are forced on at the factory pretty far, so it usually takes some lube and a block of wood (against the round can) and a small mallet to remove (and an extra set of hands helps). Do not bother trying to seal the mufflers, just slide them on and tighten.

Thanks Todd! I was hoping you would give me some tips! What about the saddlebags, do they need to be removed?
 
Thanks Todd! I was hoping you would give me some tips! What about the saddlebags, do they need to be removed?
I haven't done a Tourer yet, but I would say not needed, no.
 
I have installed agostinis on my tourer and did not have to remove the bags. I did have a heck of a time lining up the mounting brackets for the can. As well the heat shields do not fit the cans very well.
 
If your pipes are out of round, like mine, get a 2 1/8" (check the right size for your bike) muffler clamp ($2) and put it on ahead of where your muffle is supposed to end up. Tighten the clamp to round the pipe then slip on the muffler on the pipe easily and remove the clamp. Piece of cake -- although I like pie more.
 
If your pipes are out of round, like mine, get a 2 1/8" (check the right size for your bike) muffler clamp ($2) and put it on ahead of where your muffle is supposed to end up. Tighten the clamp to round the pipe then slip on the muffler on the pipe easily and remove the clamp. Piece of cake -- although I like pie more.


Great tip, thank you!
 
I have installed agostinis on my tourer and did not have to remove the bags. I did have a heck of a time lining up the mounting brackets for the can. As well the heat shields do not fit the cans very well.

Mike

Relocate the lower screw on the heat shield, remove the lower screw, re-position the shield and drill new location point
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Regards

Tuono
 
I have installed agostinis on my tourer and did not have to remove the bags. I did have a heck of a time lining up the mounting brackets for the can. As well the heat shields do not fit the cans very well.

Mike
Agostini is making a new set of pipes and those are the ones I got. Model is Ti. Any other tips? I got the two cans and two pipes and two spring like things. Oh yes, NO INSTRUCTIONS.
 
The staock pipes were a little difficult to remove, i did have to nudge them off with a block of wood and mallet. As for the new pipes, I had a little trouble lining up the the cans with the brackets.
 
The staock pipes were a little difficult to remove, i did have to nudge them off with a block of wood and mallet. As for the new pipes, I had a little trouble lining up the the cans with the brackets.
Would you mind listing the steps? Obviously one heat shield has to come off, you left your saddlebags in place, was it a pain with them there? I'm just getting all of the info before hand because I want to try and do this tomorrow here at home. Oh yes, did you do this on the side stand?
Thank you!
 
Would you mind listing the steps? Obviously one heat shield has to come off, you left your saddlebags in place, was it a pain with them there? I'm just getting all of the info before hand because I want to try and do this tomorrow here at home. Oh yes, did you do this on the side stand?
Thank you!

Don't over think it. Todd's instructions are exactly what I did when mounting a set of Mistrals on a Cali1400 Custom. Block of wood, rubber mallet, allen wrench(s), and a can of WD40. And another set of hands would probably speed things up by a couple of minutes once all clamps are loose...

Jim
 
Don't over think it. Todd's instructions are exactly what I did when mounting a set of Mistrals on a Cali1400 Custom. Block of wood, rubber mallet, allen wrench(s), and a can of WD40. And another set of hands would probably speed things up by a couple of minutes once all clamps are loose...

Jim
Jim
Unfortunately I have a tendency to over think things when it comes to projects like this on either of my bikes. I won't have an extra set of hands tomorrow, it will be just me, so I'm on my own.
 
Jim
Unfortunately I have a tendency to over think things when it comes to projects like this on either of my bikes. I won't have an extra set of hands tomorrow, it will be just me, so I'm on my own.

I understand, I usually do the same thing. Anyway, another set of hands isn't NECESSARY, I didn't have any either. Just make sure you use the wood/mallet on the muffler can, NOT the clamp area (at the header entrance end). I started there, and immediately bent the part of the clamp that's attached to the header pipe. Didn't ruin it, but easily could have. Beat on the can only. Other than that, my wife probably could have done the job... ;-)

Jim
 
Here are my new slip ons, but they are NOT on the bike. First off, why can't i ever go in my garage and NOT get bit by the meanest and downright aggressive mosquitoes? They were buzzing in my ear, bitting the hell out of me! These are Agostini's newest I think, the model is called Ti. I was able to get the heat shields off then I started to try and place the pipes into the actual slip ons. I sprayed the crap out of the ppies and I was able to get them in but so far into the can. There are two black platic covered hooks and there was no way to get those hooks to meet between the cans and the pipes that go into the cans! I was and am so damn frustrated, not to mention sticky and sweaty. Look real close, you can see scratches on the pipe that goes into the can. What am I doing wrong?

Guzzi 1
Guzzi 2
Guzzi 4
Guzzi 5
Guzzi 6
Guzzi 7
Guzzi3
 
Do other Agostini slip ons have that little black covered hook thing to connect the can to the pipe?
 
Do other Agostini slip ons have that little black covered hook thing to connect the can to the pipe?

My Mistrals didn't use this arrangement...

These are retaining springs (inside the plastic covering), right? I've seen a number of competition pipes that use this method, usually with no other clamping method. Anyway, install the slipons as far up the header as they will comfortably go, hook one end of the retainer, and use vice-grips to pull hard enough on the other end to bring it to the other hole. Or maybe use a rod of some sort to lever the spring's free end into position. Have you tried emailing Agostini (or maybe Moto International, AF1 Racing, etc.) for a copy of the mounting instructions??

This shouldn't be an insurmountable obstacle. Good luck...
 
James
Emails take forever with Agostini. Language barrier is another problem, but they do write English. I know this shouldn't be a big deal, it was a combo of things yesterday. Humidity, bugs biting and buzzing my ear and just the fact that there were no instructions. I emailed MPH in Texas and they told me the same thing, hard to get a hold of anyone in Italy, no instructions EVER in any box they ever sold. Surprised to say the least.
 
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