I would like to know how can I make a 5th gen prelude have 2 mufflers at the back? One on the right side, and the other on the left. Can I just buy one or I have to make a custom from mandrels? Also, what kind of effect it will have on performance and the noise of the exhaust?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Odessa &raquo;</TD></TR><TR><TD CLASS="quote"> Also, what kind of effect it will have on performance and the noise of the exhaust?</TD></TR></TABLE>

it will hurt your performance, your exhaust system requires a certain amount of back pressure to operate. with a dual exhaust setup you will lose that back pressure and upset the exhaust flow.

dual exhaust on a 4 cyl it is not required and IMO makes you look foolish.

 

and alot of times it sounds like *** because each muffler is only getting half the pulses at that point. Thing of a civic with dual exhaust.. all the ones I've ever heard are high pitch raspy sounding peices of ****

 

I'm not talking about dual exhaust, I'm talking about dual mufflers. That is one exhaust pipe coming from the cat, and then somewhere in the back it splits into 2 pipes and each goes on 1 side with a muffler. That's what I'm talking about

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rjr162 &raquo;</TD></TR><TR><TD CLASS="quote">and alot of times it sounds like *** because each muffler is only getting half the pulses at that point. Thing of a civic with dual exhaust.. all the ones I've ever heard are high pitch raspy sounding peices of ****</TD></TR></TABLE>

Well, I don't want the car to be loud, that's pretty much it...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Odessa &raquo;</TD></TR><TR><TD CLASS="quote">I'm not talking about dual exhaust, I'm talking about dual mufflers. That is one exhaust pipe coming from the cat, and then somewhere in the back it splits into 2 pipes and each goes on 1 side with a muffler. That's what I'm talking about </TD></TR></TABLE>

understood, that is how it is most commonly done on a 4 cyl. (from what i 've seen/heard). But what i stated still applies, whether its from the header back or the cat back.

 

it looks and sounds like ****, dont do it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Odessa &raquo;</TD></TR><TR><TD CLASS="quote">I'm not talking about dual exhaust, I'm talking about dual mufflers. That is one exhaust pipe coming from the cat, and then somewhere in the back it splits into 2 pipes and each goes on 1 side with a muffler. That's what I'm talking about </TD></TR></TABLE>

same thing on a straight 4.... the exhaust splits into two downstream. Be really dumb i think to run a pipe for 2 cyls and another for the other 2

 

I don't know how it sounds, but it definetely looks good I wanna get a BW rear bumper and it has 2 holes for 2 mufflers. That is why I want 2 mufflers...having just 1 looks really bad.

 

if you are just concerned with looks, which it seems you are. then go for it, its your car do want you want with it.

however just be aware that it will hurt performance, and in most peoples mind you will look foolish.

 

Yes, that is only for looks. But I still fail to see how it will hurt performance? Remember, I'm not going for a dual exhaust, but for dual mufflers, which is not exactly the same. You probably saw this on Accords, they are not dual exhausted, they just have 2 mufflers. I want something similiar to that.

 

If you want looks rather than performance or speed, go for it.

 

I want both...though I have a limited budget, so I will do whatever I can. But nobody really helped me much with what to do to get those 2 mufflers under the car. I was trying to look on the net if anyone sells something like this, but failed to find.

 

because exhaust flow is a series of pulses
high pressure and low pressure.

With a high performance exhaust or something of that nature it uses piping and such to make the pulses pull each other outward to the best ability the makers can. This helps performance. When you go and cut that one pipe, add a junction like you want to (T or Y or whatever), you're going to mess with the pulses, not to mention send less air down each section after the split. Unless you size everything perfectly you'll end up with less power than a single pipe. Hence the reason people who own RX-7's (say a 89 2nd gen) go with a single pipe and exhaust in place of the factory twin exhaust. With forced induction this doesn't matter as much as the engine doesnt' have to scavage the cylinders to achive maximum volumetric efficency, since the turbo will just shove the air in reguardless.

Hope that helps a little.

 

So you say if I replace the 2 mufflers of an Accord with just one, it will make more power? You think people at Honda didn't know that? I think it has 2 mufflers for some good reason.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Odessa &raquo;</TD></TR><TR><TD CLASS="quote">So you say if I replace the 2 mufflers of an Accord with just one, it will make more power? You think people at Honda didn't know that? I think it has 2 mufflers for some good reason.</TD></TR></TABLE>

Hmmm... funny that I've never seen a PRELUDE that Honda thought of designing a dual exhaust for (what do you think THAT means?) And the dual exhausted accord is a V6 (unless i'm mistaken.)

Dan P.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dan_P &raquo;</TD></TR><TR><TD CLASS="quote">

Hmmm... funny that I've never seen a PRELUDE that Honda thought of designing a dual exhaust for (what do you think THAT means?) And the dual exhausted accord is a V6 (unless i'm mistaken.)

Dan P.</TD></TR></TABLE>

Yeap, it's the V6.

 

since technically you can't have dual exhaust on a 4 banger because there's only one header for the exhaust to come from it should be understood he only wanted "fake" dual exhaust as in 2 mufflers, so basically all you'd be doing is having 2 mufflers instead of one with no performance gain and a crappy sound... really there is no point in dual exhaust for your car, isnt the purpose of dual exhaust for v6/v8's for more air flow because of the 2 heads? well you only have 1 head and only need 1 exhaust pipe/muffler if you want more airflow open your exhaust wider

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93preludevtec &raquo;</TD></TR><TR><TD CLASS="quote">you will look foolish.</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Odessa &raquo;</TD></TR><TR><TD CLASS="quote">I don't know how it sounds, but it definetely looks good I wanna get a BW rear bumper and it has 2 holes for 2 mufflers. That is why I want 2 mufflers...having just 1 looks really bad.</TD></TR></TABLE>

having a BW bumper looks really bad, the mufflers under it won't help any.

FWIW, a local guy had a body shop fill the other exhaust hole, so he had a normal exhaust.

Dual exhausts don't really hurt the flow. The need for 'back pressure' is a myth. Dual exhaust setups are simply loud and heavy, and generally the flow will bias to one side, but they don't hurt flow by any measurable amount on an stock H22. Also, with dual exhausts, generally the main pipe steps down to a smaller diameter when it splits. That seperation is generally what causes the most turbulence in the exhaust flow.

Before you worry about 'too much' flow, keep in mind that an open header w/ a resonator & a downturn generally gives more power then any $600 catback greddy.

That being said,

DUAL EXHAUSTS

 

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