why do we have exhaust boxes

[nico]

I've asked this more than once before I know,
but I'm still aint convinced.

I thought there was some sort of gas mechanism that went on in those boxes, but past responses say they are merely for noise reduction and help cooling. Noise - fair enough. But If its better for performance to keep exhaust gases hot, why have boxes that aid cooling??

 

[Trev]

nico
have a look at this

• to improve power and torque delivery characteristics
• to lead hot combusted exhaust gases away
• to muffle the sound, i.e. reduce noise emissions (where the intended use of the engine has to be taken into consideration)


and

http://auto.howstuffworks.com/muffler.htm

Trev

 

[Tom]

Re: Re:why do we have exhaust boxes

By the time the gasses are that far down the pipe they are cooling anyway.