Riding with out a muffler?

[edcop]

I was wondering if I could damage my Kawasaki ZZR-600 riding around without a muffler? Not the whole exhaust, just the muffler.

[pashnit]

Might think more about damaging your ears. Last time I did that on the busa, even with earplugs, my ears rang for days & gave me a splitting headache.

[busa186]

Might think more about damaging your ears. Last time I did that on the busa, even with earplugs, my ears rang for days & gave me a splitting headache.

+1 on that. I heard lack of back pressure could cause damage, but allot of people run shorties and that's the same thing as no muffler
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[edcop]

I seen someone today riding there Kawasaki zzr-600 without a muffler and it was loud.

Just wondering if any damage can be done riding with out muffler?

[rockethead]

backpressure issues= more popping IMO. I bet runnin just headers would be loud

[mattd428]

less back pressure means more top end but it will be loud as hell as for damage to the engine as long as you correct your air/fuel ratio you should be fine

[binx]

SSBike mag did a story on this and the gains are about 2hp over the can and the sound alone is not worth it..IMO

[raydog]

Why would a person do this.....to further alienate the public?

[Spkrdctr]

No, you will not damage your engine. Your ears maybe, but not your engine!

[edcop]

No, you will not damage your engine. Your ears maybe, but not your engine!

It does not matter cuz i am deaf anyway, can't hear a thing.

[mattd428]

then you have nothing to worry about

It does not matter cuz i am deaf anyway, can't hear a thing.

[lil charlie]

Do the stock headers have a built in cat like the gen II busa? If so then you have plenty of back pressure. A loss on back pressure will cause lots of popping, a drop in HP, and less gas mileage but I don't think it will hurt the motor.
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[edcop]

then you have nothing to worry about

Yea, all the loud rock concerts when i was younger kinda damaged my hearing.

I have "tinnitus" its a constant ringing in my ears.
I have had it ever since i can remember.

[edcop]

Yea, all the loud rock concerts when i was younger kinda damaged my hearing.

I have "tinnitus" its a constant ringing in my ears.
I have had it ever since i can remember.

I can hear ok i guess, just have ringing in my ear all the time.

[lil charlie]

My ears always ring too....always. makes it hard to fall alseep sometimes.
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[mattd428]

sounds like an old man thing

[rashad]

The truth about exhaust backpressure and torque

[BusainOrlandoFlorida]

It does not matter cuz i am deaf anyway, can't hear a thing.

What ?

[moloko]

i wonder why they made that law in california... you know, the one about exhausts...

[FloydV]

less back pressure means more top end but it will be loud as hell as for damage to the engine as long as you correct your air/fuel ratio you should be fine

Ditto on this. A mechanic told me that anytime you lessen back pressure on a bike, you have address how it affects the A/F. It's more important on a bike because the exhaust system is way shorter than on a car, which makes it moe sensitive to changes.