RD350 exhaust options.

PhilMill63 · October 16, 2026, 03:25:39 PM

What are guys who have put 350 top end onto later RD250s using for exhausts? Will 350B front pipes go into later pipes/chambers? What are my options, bike is a '79 250E with 350 cylinders.
Thanks.

m in sc · October 16, 2026, 03:30:35 PM

cant speak to the e models but the 75 and back 250/350 exhaust interchange with the only diff being the baffle. they sell reproduction (and better flowing) 350 baffles that slide right in

id imagine the mounting is different..?

PhilMill63 · October 17, 2026, 04:09:17 AM

It's totally different, different height and angle. I guess I'll be having a set of chambers made to fit. I was hoping somebody here may have found an alternative.

RDnuTZ · October 17, 2026, 10:16:36 AM

it would help if you mentioned what country you are located in and picture or 2 of the bike you're talking about.

PhilMill63 · October 17, 2026, 02:01:27 PM

Quote from: RDnuTZ on October 17, 2026, 10:16:36 AMit would help if you mentioned what country you are located in and picture or 2 of the bike you're talking about.

The bike is in UK but I spend my time between Florida and UK. Will try and post a picture of how it was when I bought it.

PhilMill63 · October 17, 2026, 02:05:27 PM

Here is bike as I got it.

m in sc · October 17, 2026, 07:05:59 PM

i would bet you could use 350 aircooled headpipes with the stock mufflers and probably use the repro 359 baffles in there

PhilMill63 · October 18, 2026, 03:50:15 AM

Quote from: m in sc on October 17, 2026, 07:05:59 PMi would bet you could use 350 aircooled headpipes with the stock mufflers and probably use the repro 359 baffles in there

Thats something I had considered, thanks.

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RD350 exhaust options.