What does the inside of an oem WRX muffler look like? - Page 4

Carlos_WRX · 01-07-2006, 09:42 AM

It has been asked but since im really intrested anyone opened up the STI muffler? pics pleasee

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PJ2.5RS · 01-07-2006, 12:12 PM

Quote:

Originally Posted by Carlos_WRX

It has been asked but since im really intrested anyone opened up the STI muffler? pics pleasee

+1... Someone's gota have a spare lying around!...

drees · 01-07-2006, 01:43 PM

Tough to open up a STI muffler when they sell for $100+!

Silver_04_WRX_SC · 01-07-2006, 01:46 PM

Quote:

Originally Posted by drees

Tough to open up a STI muffler when they sell for $100+!

Very true, I run a STi muffler on my car... and I am debating about cutting her open and doing a custom job inside. Do you all think it would be possible to re-seal the muffler once I hack it up for a more free flowing design? That is, if its not already, but I was thinking some 3'' pipe

St0k3d · 01-07-2006, 02:02 PM

i dont have the time to cut open my stock muffler (STI)

but anyone on long island is more than welcome to come get it to cut it open, no you cant just have it

i think i have an 05 wrx muffler, and definatly an 04 sti muffler... they are the same i think aside from the sti's tip saying STi

drees · 01-07-2006, 02:07 PM

Quote:

Originally Posted by Silver_04_WRX_SC

Do you all think it would be possible to re-seal the muffler once I hack it up for a more free flowing design?

Anything can be done if you can weld.

Cusson · 01-07-2006, 02:54 PM

i wonder if it'd sound good if you just removed all those pipes

Gil · 01-07-2006, 04:10 PM

Quote:

Originally Posted by Cusson

i wonder if it'd sound good if you just removed all those pipes

i reckon it will be loud and sound hollow.

Silver_04_WRX_SC · 01-07-2006, 04:24 PM

Quote:

Originally Posted by St0k3d

i dont have the time to cut open my stock muffler (STI)

but anyone on long island is more than welcome to come get it to cut it open, no you cant just have it

i think i have an 05 wrx muffler, and definatly an 04 sti muffler... they are the same i think aside from the sti's tip saying STi

The pipe is different in size 2 1/4 vs 2 1/2, but someone should take him up on the offer and grab that thing. Cut'er open and post some pics!

MadDogSTi · 01-08-2006, 11:54 PM

so that is why WRX goes ROARRR with aftermarket muffler

Chiketkd · 01-09-2006, 10:53 PM

Bump for pics!

sfjohnson · 01-31-2006, 10:02 PM

Whelp... unless you are good with stainless, this might be out of some folks price range. Cost me $100 at a local shop since none of my friends had gas to do stainless. Thought it was going to be $20, but ended up taking a couple of hours to put it all back together. Might be better if you leave the baffles in to help with shape... I will get some movie clips with my set up (2.0 wrx with helix up-pipe, turbo-xs catless with the v1 muffler, modded stock, and also a straight pipe (!)). Stay tuned.

hikeeba · 02-06-2006, 01:19 PM

I have acquired a replacement axleback and started my WRX muffler hack project last night. sfjohnson's suggestions have been noted. I am planning on using a no-weld method to seal it up when I'm finished. I will try to work on sound clips, too, but that may be a stretch for me. I am taking pics along the way.

WRXplatinum · 02-06-2006, 02:04 PM

Good work.!

CGM_WRX · 02-06-2006, 02:07 PM

I wondered why the muffler body was so damn big. Thanks for sharing.

dudical26 · 02-10-2006, 01:24 PM

What would it be like if you cjust cut it open, gutted it, and then not re-seal it

ohnoes! · 02-11-2006, 02:16 PM

Quote:

Originally Posted by dudical26

What would it be like if you cjust cut it open, gutted it, and then not re-seal it

It'd probably sound like ass.

hikeeba · 02-12-2006, 08:39 AM

Quote:

Originally Posted by ohnoes!

It'd probably sound like ass.

Yes, what ohnoes! said. Probably not completely like ass, but my guess is with an open-top gutted muffler about an inch-and-a-half away from that heat shield, things will get noisy. Probably even noisier than an open midpipe with the axleback removed. I actually found the open midpipe to be a hair quieter than the ride5000 mod (blah,blah - please refrain from sending me more death threats regarding that one).

I had a quick idea to do dudical26's suggestion and install the unit without sealing it up. However, it's winter here, and there would be very obvious exhaust vapor bleeding out around the muffler body. So, I will not install the unit without closing the access hole.

Today I hope to fab up a different cover. I already made one and it fits fine, but I left it in the oven just a little too long, and it has some heat scarring. Today I plan on making a more cosmetically pleasing cover, and completing the gutting process. If things go well, I will install the temporarily sealed unit tonight.

Silver_04_WRX_SC · 02-12-2006, 12:42 PM

Quote:

Originally Posted by hikeeba

Yes, what ohnoes! said. Probably not completely like ass, but my guess is with an open-top gutted muffler about an inch-and-a-half away from that heat shield, things will get noisy. Probably even noisier than an open midpipe with the axleback removed. I actually found the open midpipe to be a hair quieter than the ride5000 mod (blah,blah - please refrain from sending me more death threats regarding that one).

I had a quick idea to do dudical26's suggestion and install the unit without sealing it up. However, it's winter here, and there would be very obvious exhaust vapor bleeding out around the muffler body. So, I will not install the unit without closing the access hole.

Today I hope to fab up a different cover. I already made one and it fits fine, but I left it in the oven just a little too long, and it has some heat scarring. Today I plan on making a more cosmetically pleasing cover, and completing the gutting process. If things go well, I will install the temporarily sealed unit tonight.

Any pics?

hikeeba · 02-12-2006, 05:54 PM

Yep, here are some teasers for you. I am working on this project right now. I have made a new cover and I am now going to begin the gutting procedure:

The muffler shell is two layers. The steel is pretty springy:

Da hole:

Ok. I'll post pics for all the steps when I'm done. But I don't think I should post it here, as I think we have outgrown the 'Member's Car Gallery.' Should I post it in the Int & Ext Mods forum, or Factory 2.0L Powertrain forum? Please advise. Thanks!

Gil · 02-12-2006, 06:39 PM

has anyone compared the cfm of a stock muffler with the cfm of some aftermarket ones?

turbocolin · 02-12-2006, 06:42 PM

YEAH I SAW THEM DO IT ON MONSTER GARAGE ONE TIME i tried it as well your cuts are mint though i used a cutting wheel and it lookede like crap also how does it sound now

hikeeba · 02-12-2006, 08:07 PM

Quote:

Originally Posted by gil_ong81

has anyone compared the cfm of a stock muffler with the cfm of some aftermarket ones?

Eeesh... Good idea. That makes sense. What would you need to measure cfm? ...hand dyno or arm hair dyno?(both sense different velocities of air movement, but are not very accurate)...

hee hee. Seriously, a cfm chart would be a good thing to put together.

I'm too far along to do that with mine now. I have the short velocity stack thing out and the perforated inlet pipe out. I will hang it up for tonight, as I need to ponder my tool situation for my next move.

Again, What forum should I post my project in, Int & ext mods, or Factory 2.0L Powertrain?

tooocool49723 · 02-12-2006, 08:12 PM

neither. Keep posting in this thread.

Chiketkd · 02-12-2006, 08:14 PM

I wonder how much the internal design of the '05+ WRX muffler (single large tip) changed from the '02-'04 (dual tips).

02-12-2006, 05:54 PM	#95
hikeeba Scooby Specialist Member#: 89165 Join Date: Jun 2005 Chapter/Region: MWSOC Location: SE WI Vehicle: Poop Stuck Survivor -=C=- & subari87 FOREVER!	773H yea I got pics... Yep, here are some teasers for you. I am working on this project right now. I have made a new cover and I am now going to begin the gutting procedure: The muffler shell is two layers. The steel is pretty springy: Da hole: Ok. I'll post pics for all the steps when I'm done. But I don't think I should post it here, as I think we have outgrown the 'Member's Car Gallery.' Should I post it in the Int & Ext Mods forum, or Factory 2.0L Powertrain forum? Please advise. Thanks!

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01-07-2006, 09:42 AM	#76
Carlos_WRX Scooby Newbie Member#: 63600 Join Date: Jun 2004 Location: Caguas, PR.	It has been asked but since im really intrested anyone opened up the STI muffler? pics pleasee * Registered users of the site do not see these ads.

01-07-2006, 01:43 PM	#78
drees Scooby Specialist Member#: 25905 Join Date: Oct 2002 Chapter/Region: SCIC Location: San Diego, CA Vehicle: 2003 Silver Wagon Tuned with Enginuity	Tough to open up a STI muffler when they sell for $100+!

01-07-2006, 02:02 PM	#80
St0k3d Scooby Specialist Member#: 48603 Join Date: Nov 2003 Chapter/Region: Tri-State Location: Long Island, NY Vehicle: 2008 STi	i dont have the time to cut open my stock muffler (STI) but anyone on long island is more than welcome to come get it to cut it open, no you cant just have it i think i have an 05 wrx muffler, and definatly an 04 sti muffler... they are the same i think aside from the sti's tip saying STi

01-07-2006, 02:54 PM	#82
Cusson Scooby Guru Member#: 95695 Join Date: Sep 2005 Vehicle: 2018 STI Limited	i wonder if it'd sound good if you just removed all those pipes

01-08-2006, 11:54 PM	#85
MadDogSTi Scooby Newbie Member#: 85428 Join Date: Apr 2005 Chapter/Region: MWSOC Vehicle: 2006 Enzo Ferrari Black	so that is why WRX goes ROARRR with aftermarket muffler

01-09-2006, 10:53 PM	#86
Chiketkd Scooby Guru Member#: 71634 Join Date: Sep 2004 Chapter/Region: MAIC Location: C-Ville, VA Vehicle: In hibernation...	Bump for pics!

01-31-2006, 10:02 PM	#87
sfjohnson Scooby Newbie Member#: 53044 Join Date: Jan 2004 Location: State College, PA Vehicle: 2002 Impreza WRX WRB	Whelp... unless you are good with stainless, this might be out of some folks price range. Cost me $100 at a local shop since none of my friends had gas to do stainless. Thought it was going to be $20, but ended up taking a couple of hours to put it all back together. Might be better if you leave the baffles in to help with shape... I will get some movie clips with my set up (2.0 wrx with helix up-pipe, turbo-xs catless with the v1 muffler, modded stock, and also a straight pipe (!)). Stay tuned.

02-06-2006, 01:19 PM	#88
hikeeba Scooby Specialist Member#: 89165 Join Date: Jun 2005 Chapter/Region: MWSOC Location: SE WI Vehicle: Poop Stuck Survivor -=C=- & subari87 FOREVER!	I have acquired a replacement axleback and started my WRX muffler hack project last night. sfjohnson's suggestions have been noted. I am planning on using a no-weld method to seal it up when I'm finished. I will try to work on sound clips, too, but that may be a stretch for me. I am taking pics along the way.

02-06-2006, 02:04 PM	#89
WRXplatinum Scooby Specialist Member#: 75660 Join Date: Nov 2004 Chapter/Region: MWSOC Location: -=OT Zombie Fighter=- Vehicle: USMC Viva La Resistance!	Good work.!

02-06-2006, 02:07 PM	#90
CGM_WRX Scooby Specialist Member#: 66280 Join Date: Jul 2004 Location: Boise, ID Vehicle: 2005 WRX Sedan Crystal Gray Metalic	I wondered why the muffler body was so damn big. Thanks for sharing.

02-10-2006, 01:24 PM	#91
dudical26 Scooby Specialist Member#: 37934 Join Date: Jun 2003 Chapter/Region: Tri-State Location: Northern NJ	What would it be like if you cjust cut it open, gutted it, and then not re-seal it

02-12-2006, 06:39 PM	#96
Gil Scooby Specialist Member#: 20872 Join Date: Jul 2002 Chapter/Region: Tri-State Location: Rochester, NY Vehicle: t3h rubber-neckers must die!	has anyone compared the cfm of a stock muffler with the cfm of some aftermarket ones?

02-12-2006, 06:42 PM	#97
turbocolin Scooby Specialist Member#: 43539 Join Date: Sep 2003 Location: washingtonville ny Vehicle: 95L 97L 03hedgehog 02 wag 180mph monster	YEAH I SAW THEM DO IT ON MONSTER GARAGE ONE TIME i tried it as well your cuts are mint though i used a cutting wheel and it lookede like crap also how does it sound now

02-12-2006, 08:12 PM	#99
tooocool49723 Scooby Specialist Member#: 67127 Join Date: Jul 2004 Chapter/Region: MWSOC Location: Belleville, MI Vehicle: 3.3 I <3/h8 my GF3 1.8-2.5-2.2-2.5-2.2-3.3	neither. Keep posting in this thread.

02-12-2006, 08:14 PM	#100
Chiketkd Scooby Guru Member#: 71634 Join Date: Sep 2004 Chapter/Region: MAIC Location: C-Ville, VA Vehicle: In hibernation...	I wonder how much the internal design of the '05+ WRX muffler (single large tip) changed from the '02-'04 (dual tips).