I have experienced three exhaust so far for my Honda CBR 400.

1) Factory Honda Exhaust
2) Pipe WERX Exhaust
3) SP Engineering -the best can and the loudest and the lightest in weight

I want to know exhausts that other 400 owners have had....which have been the loudest? The one that gives the most power, the lightest in weight?

Go for a Japanese market system: Beet, Yoshimura, Moriwaki, etc for added cool points

jim157 wrote: ↑

Mon Feb 05, 2018 12:58 pm

Go for a Japanese market system: Beet, Yoshimura, Moriwaki, etc for added cool points

I’ve had all three and the only one to go for is the Beet. The other two are mild steel and by now most are in a bad state that I have seen.

The beet titanium systems are a work of art, I have one on my nc29 trackbike

I think Yoshimura gives the most power.

Please can you give me links on where to find Beet system.....I can only find Yamamoto.....

My SP Engineering Can....F Sexy Sound

I have a Graeme France system and an SP engineering can , which is bloody loud even with the dB killer fitted!


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The Graeme France systems with the balancer pipes are a copy of the beet system I have

jim157 wrote:Go for a Japanese market system: Beet, Yoshimura, Moriwaki, etc for added cool points

Hi Jim, as my Nc21 is being striped down and I'm unsure of the current exhaust is it good practice to replace whilst engine is out?
Appreciate your knowledge on this as later on it would be a pain.
Cheers Derek

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DereksNC21 wrote: ↑

Tue Feb 06, 2018 10:33 pm

jim157 wrote:Go for a Japanese market system: Beet, Yoshimura, Moriwaki, etc for added cool points

Hi Jim, as my Nc21 is being striped down and I'm unsure of the current exhaust is it good practice to replace whilst engine is out?
Appreciate your knowledge on this as later on it would be a pain.
Cheers Derek

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Hi Derek, I've never owned at nc21 but I recall reading that it is very difficult to replace the exhaust with the engine in situ. Best to do it while you've got the motor out.

Has as been documented recently I have the GF racing set with a Beowulf stubby. I think they are really good and work much better than those cheapos you find on ebay. I may change my can as it is now looking a little scuffed.

I have a Full Aluminium Diashin system on my NC29 race bike that I only just got back!


Have the option of running a custom made link pipe if needed that my oldman made.