Author Topic: Looking for quiet, stock-looking exhaust for CB550F  (Read 578 times)

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Offline WaxhawFive

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  • 1975 CB550F Super Sport
Looking for quiet, stock-looking exhaust for CB550F
« on: May 04, 2020, 11:50:04 AM »
I just enjoyed the 8-page Exhaust Photo Reference Library, lots of cool period stuff brings back memories.  I'm in the market for a replacement for my noisy MAC system that came with the bike.  Looking for quiet, stock looking low design, retain the center stand.  My MAC is in very good shape, so I would also consider just a new muffler if I could find something long, low and quiet to bolt up to the header.
1975 CB550F Super Sport

Offline Scott S

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Re: Looking for quiet, stock-looking exhaust for CB550F
« Reply #1 on: May 04, 2020, 11:51:19 AM »
 Does your MAC have a baffle? I've never considered the MAC loud.
'71 CB500 K0
'17 Triumph Street Scrambler
'81 Yamaha XS650

Offline WaxhawFive

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Re: Looking for quiet, stock-looking exhaust for CB550F
« Reply #2 on: May 04, 2020, 11:57:31 AM »
I assume it does, there's a plate in the end with a smaller outlet for the exhaust pipe.  Maybe the insulation is just all burned out.  (pics attached)
1975 CB550F Super Sport

Offline BenelliSEI

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Re: Looking for quiet, stock-looking exhaust for CB550F
« Reply #3 on: May 04, 2020, 05:18:11 PM »
That pipe looks great! Why not pull out the insides and repack it?

Offline Bankerdanny

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Re: Looking for quiet, stock-looking exhaust for CB550F
« Reply #4 on: May 04, 2020, 08:19:04 PM »
The Delkavic muffler has two levels of baffles. I removed the inner and just run the single fiberglass wrapped baffleI on my 750 and it doesn't seem excessively loud to me. Plus it will never rust and is quite light.

https://delkevic.com/full-system-to-fit-cb550f-supersport-1975-1977-with-classic-megaphone-muffler-and-stainless-steel-4-1-downpipes/
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Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200