dual exhaust on a 97 gt celica?, good or bad Options

[ROMANO]

Hey guys, Hope you all dont get to heated for this quetion, but I had a dual exhuast with no name muffler and tip installed into my 97 gt celica conv. My only question is, what is it actually doing for my car, is it gonna pose as a future problem. For my intentions were only to give my car more of a louder bark with out the bite if you know what I mean.Ill apply pictures to show you what I have done and how it looks. Oh another thing my car is an automatic if that helps you figure out what problems might occur in the future p.s it sounds really good to with a deep resonating hum to it.

This post has been edited by ROMANO: Oct 14, 2005 - 1:56 PM

[shid]

Any dual exhaust will have twice the noise as a single. Quad exhaust, twice that noise. You are literally doubling the amount of exit points for the noise each time.

While a noise increase is certainly the result of removing the cat, etc, thats not the primary reason for the noise.

Also, because of the imperfect nature of the world, it is impossible to actually get the same performance out of a dual pipe that you would out of a single- no matter how equal it looks on paper.

This issue has been debated until the rocks have turned into sand. The only time dual exhaust is not detrimental is when you're using each pipe for different cylinders, like the dual exhaust for some cars from the factory, or a Mugen exhaust (I forget which car it was for), or when your engine is full of so much hot as to make Playr look mild by comparison.

Coming from a single pipe and then splitting will always result in performance losses over a big pipe. Of course, what pipe size is right for you? I'm not getting into gas scavenging in this post.