Author Topic: Will CB350F Exhaust fit a 400F Engine?  (Read 1306 times)

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Offline monstergarage

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Will CB350F Exhaust fit a 400F Engine?
« on: February 16, 2017, 01:22:38 PM »
I have a CB350F with a 400F engine swap, the exhaust I have is a hack job by the previous owner, instead of fixing all the issues and dealing with the extremely poor fit, I just want to get a new 4 into 1 setup. Carpy's has a 4 into 1 Yoshimura style 350F on sale for $250, the 400F is $350, if it fits I'll just order the 350F exhaust. I did a little research but I'm not coming up with much, just different frame mounting between the 2.

https://carpyscaferacers.com/shop/shop-our-store/motorcycle-parts-accessories/honda-cb500-cb550-cb750-parts-upgrades/exhaust-4-into-1-cb350-4-yoshimura-style/

I'd like to order today,
Thank you for your time!

Offline innovativems

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Re: Will CB350F Exhaust fit a 400F Engine?
« Reply #1 on: February 16, 2017, 01:39:26 PM »
Yes it will.  The only difference is the collector on them if that.  I have a system I'm 99% sure I'm selling.  It's posted in the for sale section


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2007 KTM 990 adv
2003 Honda RC51
2000 Yamaha YSR50
1978 Honda Express
1975 Honda CB400f
1974 Honda CB350f
1974 Kawi H2
1974 Honda CB550f
1971 Kawi h1
1973 Kawi h1
1974 gt 550
1974 gt550

Offline flybox1

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Re: Will CB350F Exhaust fit a 400F Engine?
« Reply #2 on: February 16, 2017, 01:54:05 PM »
Email carpy  :-\
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
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"Knowledge without mileage equals bullsh!t" - Henry Rollins

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Offline innovativems

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Re: Will CB350F Exhaust fit a 400F Engine?
« Reply #3 on: February 16, 2017, 01:59:20 PM »
Yes it will.  The only difference is the collector on them if that.  I have a system I'm 99% sure I'm selling.  It's posted in the for sale section


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Should have added I have both a 400 and a 350f right now.  So let me know if I can help.  I have swapped both systems between each other. 


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2007 KTM 990 adv
2003 Honda RC51
2000 Yamaha YSR50
1978 Honda Express
1975 Honda CB400f
1974 Honda CB350f
1974 Kawi H2
1974 Honda CB550f
1971 Kawi h1
1973 Kawi h1
1974 gt 550
1974 gt550

Offline markreimer

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Re: Will CB350F Exhaust fit a 400F Engine?
« Reply #4 on: February 16, 2017, 04:40:22 PM »
Yes. The only diff is mounting points on the frame. I have a 350 with a 400f stock header and foot controls. It all plays nice together. Since it's a 350 frame, get the 350 exhaust. The header side of things will be identical


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Offline carnivorous chicken

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Re: Will CB350F Exhaust fit a 400F Engine?
« Reply #5 on: February 16, 2017, 05:34:20 PM »
Pegs are in a different spot, and the brake levers are mounted differently on a 400F engine -- that's what you should be sure about. And rear mounting as markreimer pointed out.