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Old 04-02-2003, 06:06 PM   #1
Siper2
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Default Looking for info on '00 RS optional (BroSpeed) muffler

Hello all.

I have a question that I may already know the answer to.
When I bought my car, I got the factory-option "upgraded" muffler, which I believe is made by BroSpeed. It does seem to sound nicer than the totally OEM GC RS models I've heard, however I don't know if the actual flow characteristics are improved. This is what I'm trying to find out. A while back I recall some folks saying that, internally, it's the same muffler... But I don't know if that was speculation or fact.

I ask because I'm window shopping for exhausts. My first free few hundred bucks will probably go towards STi strut tops and maybe Kartboy droplinks. After that I want to do the exhaust thing. My newfound top-of-the-list idea is an STi Ver.4/5/6 model, maybe used if I can't find a vendor who still sells them. (I've already tried SPDUSA.com, and currently have an Email off to AVSport.)

The STi setup I hear (from "omahasubaru" who dynoed a stock RS at a 12hp gain from this unit plus a custom CAI ) is quite nice, and I like the stealth factor.

BUT! Being frugal these days, if the BroSpeed does indeed flow better, than it'd be smarter to just go and get a nice mandrel-bent midpipe/cat-back section and attach it to what's already there. No sense getting rid of the thing if it's good; after all, it does LOOK nice.

Oh... FYI, I will probably suck it up and go with a CAI, though for me I like the PDM-Racing one.

Thanks.
-S2-
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Last edited by Siper2; 04-02-2003 at 10:28 PM.
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Old 04-02-2003, 08:57 PM   #2
AustinSTi
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turbo back??
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Old 04-02-2003, 10:29 PM   #3
Siper2
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Austin,

Sorry, had a brain fart, I edited that part out.
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Old 04-03-2003, 11:11 AM   #4
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ttt
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Old 04-03-2003, 11:32 AM   #5
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I used to have the Brospeed, but I sold it for a cutom 2.5"/Brullen dual tip muffler setup. Actually, I had the Brospeed (when I bought the car, from the dealer) and added a 2.5" mid-pipe to it later on. The mid pipe helped alot!

But after the new 2.5" custom exahust, I feel a bit more power. The Brospeed is mostly for looks/sound. the piping is like 1.875"-2"...not a big help with flow.
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Old 04-03-2003, 01:59 PM   #6
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The Brospeed with Mid-pipe is fine. It's a 2.25" diameter and does flow better than the stock unit.

Cobb Intake, Borla Headers, Random-Tech Hi-Flow Cat & SPT/Brospeed Cat back = 17-22 HP (Dyno Proven)
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Old 04-03-2003, 03:53 PM   #7
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really? when I took mine off last year and compared it my Brullen axle-back, it looked WAY smaller....
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Old 04-03-2003, 03:57 PM   #8
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That's what mine measures at the flange where the mid-pipe bolts up to the cat. I would doubt it gets smaller as it gets back to the muffler flange...but you never know.
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Old 04-03-2003, 05:42 PM   #9
Siper2
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I'd be interested to know if that is indeed true, that the pipe diameter shrinks as it goes back....

Opie, is the measurement method you used, usually how an exhaust pipe is measured? I have no idea.

I'm not expecting huge power jumps with just a midpipe, but if the BroSpeed's good enough not to ditch, then a midpipe plus a CAI *might* yield, what, 8-10hp? I don't think I'd upgrade the cats. How much was yours though, Opie?

And how much should a midpipe cost at a small exhaust shop...?

-S2-
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Old 04-04-2003, 10:01 AM   #10
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I originally had the Brospeed on my car. I'm fairly certain that the piping is the same size as stock. I'm almost positive that it is not 2.25", because I replaced it with a rallispec 2.25" cat'back. The difference between the two was obvious (from what I remember).

Siper- If I get a chance this weekend, I'll take some pics of the difference between mine and my brothers exhausts. He's got my old Brospeed.

Later,
Matt
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Old 04-04-2003, 10:50 AM   #11
Opie
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My measurement method was quite simple, I held a tape measure across the opening and eye-balled it. The reason I measured it was the Random Tech cat piping is 2.5" and I wanted to see how much of a difference there was when they were connected. By looking at them you can tell the mid-pipe is smaller exterior diameter than the cat's, when I measured the inner diameter (with the tape measure) it was right about 2.25". I'm begining to wonder if it's flared on the cat side to be larger, or if the entire mid-pipe is a different diameter than the muffler.
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Old 04-04-2003, 11:02 AM   #12
Siper2
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Well we've quite the mystery on our hands, then.

Maybe between Opie and RSmatt we can solve this thing!
(Feels like a Hardy Boys book. )


Thank you guys for helping me out with this one. I'd just hate to sell the Brospeed if it isn't a bad muffler. It looks fine and even sounds pretty good, but I know it's being choked by the OEM midpipe (which must be less than 2.0" right?), so...

Anyway, if I can save money and just go for either a regular or stainless midpipe, rather than a new can to go with it, that'd make me happy. I mean I'd love to have that STi V5 system or a Scoobysport or something, but realistically that won't happen.


-Chris
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Old 04-04-2003, 11:00 PM   #13
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Question Okay now I need to clarify something!

Talked with North_Ursalia today. According to him, the factory upgrade option in 2000 was the muffler AND the midpipe.

I'd always heard that it was just the muffler.


Can anyone clarify?? I don't know, personally. I've been under my car several times, but no way I paid attention or could've told you what midpipe I've got. I assume it's stock, it sure looks it, but.... *shrug*

If the factory option SHOULD have included a midpipe, and I didn't get one, well that might be a freebie for me. Don't know.

-S2-
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Old 04-05-2003, 09:15 AM   #14
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The Brospeed should have definitely come with a midpipe. I know mine did. It should be easy to tell if you got the midpipe, as it is stainless steel.
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Old 04-05-2003, 09:29 AM   #15
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Originally the upgrade just included the muffler, sometime in mid 2000 the mid-pipe was added and included in the upgrade. Depending on when you bought your car (or your exhaust if you bought it seperately) in may or may not have come with the mid-pipe. I believe the OEM mid-pipe has a resonator in it and the Brospeed does not, plus the piping size is different.
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Old 04-05-2003, 11:42 AM   #16
Siper2
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I bought mine on May 30 of 2000, actually. And I'm pretty sure my midpipe isn't stainless, since it looks pretty rusty.

So..... hmm.
Anyone know when the cutoff time was? Maybe something on my purchase receipts that might be a giveaway?

If the dealership owes me a midpipe I want to know!!!!!!!!!!!
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