I am deffintly getting an exhaust system with in a few weeks and after researcing ( mostly forums). There are only 2 systems that i know of. And that is th DC sports exhaust and also the magnaflow exhaust. I would like to know if anybody know which will flow better? And which will sound better? After looking under my car today I relized there is A LOT of bends and it could deffintly flow a lot better. Im pretty sure I saw one bend that was under 90 degrees ( In which it actully flows back a lilttle bit twords the front of the car). All i have for links are these

magnaflow

http://www.magnaflow.com/04sound/04sport.asp

and the DC sports..


http://www.ptuning.com/html/Item-Des...delDesc=Cobalt


and let it begin..

 

i would go w/ the DC sports exhaust.

 

wait for Borla to come out with one





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yeah borla sounds the best. either way dule exit would look cool.

 

I'm going with the DC sports exhaust. I can't seem to figure out why you would want to put a dual exhaust system on a 4-cylinder car. Yeah it looks cool, but it doesn't give you any added performance benefits.

 

 

because we can




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Dual exhaust on a low displacement engine will actually hinder performance due to the decrease in backpressure

 

Due to the single exhaust mani, the only hinder in performance would be the added weight., besides that the "y" that seperates the 2 exhaust outlets should not due any damage to the performance at all. As far as it looking rice, a matter of opinion, especially if a rear valance would be added that had two exhaust cutouts like the rksport, how does it look to have two holes for exhaust, and only one side filled in?

 

on a turbo 4 cyl. the dual would be a benefit to the car but not by much

 

dual just looks better i prefer dual with dual tips over a big ass can with no style

 

exactly, true duals does not hinder performance at all. And its not even a true dual exhaust setup anyway. Its a single pipe setup with an extra exit...not going to hurt performance at all.

 

better chance of hurting than helping. exhuast works with pressure. gasses exit the head from high pressure filling lower pressure. your exhuast directs it out the back. too many exits, paths, or too large of pipe effects the sort of "vacuum". so yes size matters when it comes to exhuast. too large will hinder just as too small. i increased mine to where it flows 2" all the way back with a magnaflow muffler. resignator left in tact with good power gain and not-so annoying bumble bee sound.

 

2" is way too narrow especially w/ a F/I car. my stock pipping on my N/A car is 2.25". and yes having too much wide pipping will hinder performance as having too small pipping.

 

Also, doesn't matter if you go 2.5" or 3", if you have a restrictive header to begin with, there really is no material gains from a bigger exhaust without changing the header (10 hp at most).