General Category > General Discussion
Fitting a 35mm muffler to a 32mm pipe
moto:
I bought a V50 recently that came with a second set of mufflers that turned out to be the OEM V50 iii version built for 35mm exhaust pipes instead of the 32mm on the V50.
Any tips on mounting them? I can make new hangers, but am not finding 32x35mm reducing sleeves.
A simple sleeve would be just right, allowing the full length of the 32mm pipe to fit inside the muffler as intended.
I bought 32x35 aluminum pipe before thinking about the difference in the expansion coefficient compared to steel.
32mm is about 1 1/4 inch (1.260 vs. 1.25) and 35mm is 1 3/8 (1.375 vs. 1.378) but so far no luck with inch-sized sleeves that small.
I could buy Mistrals but the price is getting near $1000 with the tariff, I believe. The V50 iii ones I got look very nice.
jcctx:
Muffler shop can "swell" the pipes up size needed??
Antietam Classic Cycle:
Maybe a set like this and trim the ends so that they work with small I.D. pipes?
https://www.partzilla.com/product/aftermarket/2154-EMGO-80-47310
DoubleGuzzi:
--- Quote from: Antietam Classic Cycle on October 07, 2025, 11:22:14 AM ---Maybe a set like this and trim the ends so that they work with small I.D. pipes?
https://www.partzilla.com/product/aftermarket/2154-EMGO-80-47310
--- End quote ---
That is exactly what I was thinking of :thumb: (I've just been searching Aliexpress for them for you). Alternatively, go cheapskate with some kitchen 'tin foil' (actually aluminium). You'll likely require some exhaust assembly paste to provide a decent seal.
UK link: https://www.feked.com/exhaust-reducing-bush-set-of-3.html
bronzestar1:
Another option would be to remove the head pipe, take it and the muffler to a good muffler shop, and have them "flare" the end of the header pipe to match the muffler inlet. A little more work, but having the two ends slip fit into each other would be better than using reducers.
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