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Discussion Starter · #1 ·
Well, I tried googling to find out the inner diagram of the stock exhaust, but found none. How many chambers it has to make that muffler almost silent. I'm thinkin' to do some light modification to the stock muffler just to make more 'bassy' (how to describe that word?) in order to give 'big bike' sound alike. (don't tell me to swap the engine to a bigger cc's ;) )

But before I screwed that thing off, i need some picture of how that muffler built.

So, if anybody got a link to such information i need, please post... :D
 

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If you want to change the sound of the bike, there is a mod that ive done that takes maybe 5 mins tops and is reversable should you decide you want to change it/dont like it etc.


I like it a lot better than stock. I have a friend who is a honda tech and he told me it wont hurt the bike at all, it'll make you gas mixture more lean too.
 

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Discussion Starter · #8 ·
That's sounds better..

But that sound does not come from the muffler, it came from the empty air filter..

Is it ok to run the bike without air filter? Will it damage the injector or something due to dusty air?

If the gas mixture is lean, doesn't it affect the performance?
 

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Honda: INNOVA125i(2010); CBR250R(2013)
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I removed the catalytic converter from the original exhaust CBR250RD model 2013.
To open the "covers" and scrape the converter out, it took me 4 hours:
Tools:

  1. Heavy clamps
  2. 4.5-inch cut disk
  3. Flat screwdriver
  4. A hammer of 600 grams
  5. work gloves
  6. Dust mask
  7. Earplugs
  8. Eye protector
  9. A well-ventilated area, and protected from fire.
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Honda: INNOVA125i(2010); CBR250R(2013)
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560 Posts
Well, I tried googling to find out the inner diagram of the stock exhaust, but found none. How many chambers it has to make that muffler almost silent.
Answer: Four chambers. A, B, C, & D:
44765
 
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