[webone]

What is the difference between mufflers and exhaust?
i just got a new magnaflo muffler for my car. What is the difference between just a muffler and a full exhaust?

 

[agiatrix]

Well, a full exhaust would be your exhaust manifold(s) (like headers) the y pipe , then from the catalytic converter all the way to and including the muffler is also known as the Cat Back , all these things are what make up your exhaust.
So based on what you are asking the full exhaust would be the Full CAT BACK exhaust.
The muffler is just that part at the end of the piping... sonmetimes the axel back
So the rest of the piping can be stock with a after market muffler...

 

[webone]

Dose changing the piping from the catback make that much of a difference?
When i got my magnaflow installed i asked the guy at the shop if going with bigger piping would help performance. For instance if i use a 2.75 pipe instead of the 2.25 pipe that comes stock on my car. He said that 2.25 is plenty big he also said that if i go too big i will loose hp is this the case ?

 

[agiatrix]

Yeah, if you go TOO big you Will hurt perfomance, you only need to go that big if you are putting out serious horsepower
Also I enjoy having a stainless steel exhaust, instead of a rusty stock one.

 

[webone]

how big should i go? I like the stainless look too but all the ones i dl a mpeg for sounded too ricey. From what i read on the forum the magnaflo is best

 

[agiatrix]

I have a Borla catback...It sounds great
About size, I am not sure how big TOO big is, I know 3 is too big though