I really want to upgrade my exhaust but i really don't have the money right now to get anything really good, so i was looking around and a found a flowmaster 2 chamber muffler that says it will fit an 04 neon should i get it just to hold me over until i can afford a better system it is only like 60 dollars?

 

Hey for $60 dollars how can you go wrong!And later on if you get a obx header and a high flow cat you won't even need a new exhaust system.

 

I totally agree....go with it for now....I got an OBX Muffler for like $150 (installed) and I just recently got the OBX headers and Downpipe for $124 (uninstalled) so for only around 300 bucks you really can have a good exhaust.....oh I almost forgot I got 3 inch pipeing all the way to the muffler too, that cost me another $50 at the local muffler shop....so I guess that brings it all to about $324....which aint too bad at all....

 

where did you get OBX headers for that cheap?

 

Just out of curiosity, but why in gods name would you run 3" piping on your N/A Neon??

 

Because he can.

Wouldnt a bigger diamiter mean a reduced velocity at the muffler end?.
I can see that it would cause issues with the smooth flow of exhaust gasses though.

Im just going to upgrade mine to 2 1/4 to match my muffler size.

I would imagine the most efficient exhaust would be the same size as the exhaust from the engine?
(so, 4 exhausts at.. Im guessing 3/4 out of the engine block? would be 3". But since they arnt all blowing at the same time you can take 3/4 off that?. I have no idea, just ignore me......)

 

If you figure that the exhaust ports are 3/4" in diamater that equals 1.7" sq area if you are taking a flat cross section of the exhaust. The area of a cross section of 3" pipe is 7.065" sq. Assuming the ports are 3/4", the closest match in diameter is 1.5" piping. Now this is figured out assuming the exhaust ports are round and 3/4" in diameter (which I don't think would be correct) and that the perfect exhaust is identically matched to the exhaust port total area. Just a little math based off what other people are saying.