Difference Between Slip-on vs. Full Exhaust?

 I'm interested in replacing the stock exhaust on my '06 V Star
Classic, and will probably go with a slip-on because of cost and the
decreased likelihood of having to get my bike re-jetted.  I get 50 mpg
and really don't want to lose much of that.  I could handle 45 mpg,
but when I hear about getting a full replacement exhaust w/ re-jetting
and have my mileage drop down to 35-37, I want no part of that.

I guess that is unrelated to my question, which is what is the
difference between a slip-on exhaust and a full exhaust?  Does the
slip-on replace only part of the muffler and the full exhaust replace
the entire lenth starting at the engine block?

 dms1casino@gmail.com wrote:

:I guess that is unrelated to my question, which is what is the
:difference between a slip-on exhaust and a full exhaust?  Does the
:slip-on replace only part of the muffler and the full exhaust replace
:the entire lenth starting at the engine block?

Most slip-ons simply replace the muffler with a less restrictive
muffler, or in many cases, a straight pipe.

What you gain is the ability to pump more air through your motor and
gain power if the following conditions exist:

1. The air cleaner and carb/throttle body setup is capable of enough
air flow to match the pipes.

2. The jets/fuel injection computer are properly adjusted to create
the correct mixture with the new, increased air flow.

3. Timing is properly adjusted for the new fuel/air charge.

4. The new muffler is properly tuned to assist in the exhaust
process. If properly tuned, the exiting exhaust already in the pipes
will suck the exhaust out of the cylinders when the exhaust valves
open. I think this process is called scavenging, but don't quote me.

The major drawback is LOUD! Loud is OK for about 30 seconds. After
that it just annoys others and makes you deaf.

A poorly adjusted setup is far worse than stock exhaust and can
create a lean mixture that will actually damage your motor.

You will lose mileage, depending on how much you twist the throttle.


---
Typical White Person

 dms1casino@gmail.com wrote:


What?  Is it rusted out already? In only two years?  Whew!

Gee whiz, I've a 31 year old bike with the original exhaust and mufflers
still on it, and no signs of rust at all.

--
   -bts
   -Motorcycles defy gravity; cars just suck