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Old 02-17-2004, 05:17 PM   #1
poison
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Default Anyone ever put a WRX stock exhaust on their RS/TS?

I know you can cut it , turn the flange, and bolt it on, but how does it sound? is it different? It must be a little freer flowing?

Thanks Nate
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Old 02-17-2004, 05:28 PM   #2
marcus12
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Not an RS/TS, but I have a stock cat-back on my Impreza L and it sounds and flows great. I'm thinking of replacing my stock catalytic converter with something hi-flow, too.

Easy installation too.

//marcus
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Old 02-17-2004, 05:33 PM   #3
poison
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markus12, is it louder and angrier? My tS is so damn quiet
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Old 02-17-2004, 05:50 PM   #4
lildragn11
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I have a stock wrx muffler mated to a custom midpipe. It sounds louder than stock...kinda like a stock wrx at lower rpms. It's cheap and flows better. As well if not better than my previous aftermarket muffler.
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Old 02-17-2004, 06:02 PM   #5
obyone
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Quote:
Originally posted by lildragn11
I have a stock wrx muffler mated to a custom midpipe. It sounds louder than stock...kinda like a stock wrx at lower rpms. It's cheap and flows better. As well if not better than my previous aftermarket muffler.
Not better than most of the aftermarket exhasts though.
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Old 02-17-2004, 06:09 PM   #6
poison
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But for $20 plus $20 to hack it?
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Old 02-17-2004, 06:47 PM   #7
lildragn11
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i had the aftermarket one before....too DAMN loud!! so i decided to go with the wrx muffler. O well maybe a lil bit less flow but for the quiet comfortable driving that i have now, it's worth the sacrafice. No more headaches after long distance drives!!
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Old 02-18-2004, 09:36 AM   #8
marcus12
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I agree with lildragn...it is definitely louder, but not TOO loud. Gives a nice, low rumble at low RPMs(1000-2700 or so)...

If you do the WRX exhaust, I suggest some sort of open-element air filter / Cold Air Intake. I have a K&N filter mounted to my stock intake piping and it sounds really "throaty" and aggressive when accelerating, but is relatively quiet otherwise. Nice if cops are around!

//marcus
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Old 02-18-2004, 09:55 AM   #9
milla
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piker has a wrx one on his RS...
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Old 02-18-2004, 11:16 AM   #10
piker28
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yeup i got one mated with a custom midpipe so i didnt have to get anything changed on the axleback it mated right up. at the same time i installed my intake so i cant tell you how much noise this combo makes in all the rev points but it does at to the grumblyness of the car and is a nice cheap deal. It looks stock so no cops hassle me and my parents couldnt even tell i changed it. But to tell you the truth i am looking for a bit more noise but not to much, im thinking prodrive axleback or maybe the sti one but who knows

i say if you find ones for a good deal get it, but dont and i repeat dont use it on your stock midpipe cause thats pointless i mean comeon 1.75" is horrible get some power with a 2.25 one
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Old 02-18-2004, 01:41 PM   #11
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I have a 2.25" Stomung mid-pipe with the WRX muffler. As above, a little more rumble, but not loud at all. It went from complete inaudible to a point where people will be able to hear your car running. Since my resonator is gone too, I get cricket chirps occasionally on deceleration or shut down.
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Old 02-18-2004, 06:09 PM   #12
poison
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Thanks for the input, guys. I think that will be the next thing I will do after prodrives .
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Old 02-19-2004, 10:18 AM   #13
paul25RS
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how much does a custom midpipe go for?
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Old 02-19-2004, 10:26 AM   #14
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it varies from place to place i think

mine was 140 i think i bought it used off of silent_rob_95
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Old 02-19-2004, 10:26 AM   #15
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oh and by used i didnt pay 140 hah thats what it cost him to get it made
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Old 02-19-2004, 10:45 PM   #16
lildragn11
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linsavy,

what do u mean by crickett churps?? Because i think i have that same damn noise. What exactly is it?? I've been trying to source the location of the noise for so long!!! It happens after driving and putting in neutral once the RPMS hit around 1500 or 2000. It also happens sometimes upon shut down. It's annoying as hell!!!! HELP!!
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Old 02-19-2004, 10:48 PM   #17
lildragn11
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Linsavy,

Do you only notice the noise once the engine and exhaust system heats up??
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Old 02-20-2004, 11:22 AM   #18
ATX25RS
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i have an STi muffler back mated to a custom midpipe...

STi muffler with 300 miles on it :$20
exhaust work to match it up: $50
the enjoyment of the Boxer exhaust growl : priceless
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Old 02-20-2004, 11:50 AM   #19
mrbell
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I've got the noise... I think everyone gets the noise... someone conjectured that it was the tips somehow, because they replaced them w/ nicer ones and it stopped... I think this just must have muffled them more because I can't see any way the tips would make this noise.
Someone else also opened up the body of a stock WRX muffler and found that the baffling chambers have, in addition to the large main ports, small holes(approx 1/4" judging by the pictures).
My guess is these are "pressure equalization" devices that when a large amount of exhaust gas is pushed into the next chamber and pressure is built in that one, and drops drastically in the previous. These holes are provided to balance that out some, to make things quiet. When you're dropping RPMs fast, you're now getting vacuums different than what you normally see in a turbo (w/ it's smoother exhaust flow due to the exhaust turbine breaking things up into much smaller bursts) which is pulling the gasses thru the holes in a way that it causes high frequency cavitation... thus the chirping or fluttering you hear...
wow, I sounded smart there for a second... except for the fact I made most of that up and have no real way to back it up...
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Old 02-22-2004, 03:58 PM   #20
Alpha_32
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i have the 03 "STi muffler" (the OEM option one) on my 04 rs



u can kinda see it.... it is REALLY loud, probobly too loud, but im too broke right now to get a better one. Anyways, i had to have the flange from a wrx welded onto the mid-pipe of my rs so the muffler would fit.
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