reasoning behind our 2 outlet muffler?
Moderators: Helpinators, Moderators
reasoning behind our 2 outlet muffler?
is there any reason our Legacy's come with a 2 outlet muffler from the factory, as opposed to one that most car manufactures use. Are there advantages, gains, disadvantges,...?
1992 Subaru Legacy L+
FWD
Automatic
FWD
Automatic
-
- Knowledgeable
- Posts: 9809
- Joined: Mon Jun 16, 2003 11:20 pm
- Location: Beverly, MA
I would guess looks most likely, but possible low-end torque at best.
Steve
Steve
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
Looks, definitely. They put a chrome cover over it!
Legacy Central
2001 Legacy Outback Wagon | 2005 OB XT LTD | 1997 Legacy Outback Limited | 1998 Legacy L Wagon | 2000 GT Limited | 93 Legacy Touring Wagon 5MT | 90 Legacy L+
2001 Legacy Outback Wagon | 2005 OB XT LTD | 1997 Legacy Outback Limited | 1998 Legacy L Wagon | 2000 GT Limited | 93 Legacy Touring Wagon 5MT | 90 Legacy L+
-
- Spelling Nazi
- Posts: 4644
- Joined: Fri Aug 29, 2003 7:14 am
- Location: Lynnwood, WA
- Contact:
looks.......I like the smaller twin outlet personally.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
-
- quasi-mod-o
- Posts: 6000
- Joined: Thu Dec 05, 2002 7:06 pm
- Location: Tampa, FL
-
- Fourth Gear
- Posts: 1902
- Joined: Sat Aug 09, 2003 5:02 pm
- Location: Woodruff, SC
Same here. I'm planning on going with a Stromung dual outlet meffler when I get up the $$.Legacy777 wrote:looks.......I like the smaller twin outlet personally.
Disclaimer: If anything I post is inaccurate, please correct me. I do not wish to add to the misinformation floating around on the internet.
That being said, everything I post is accurate to the best of my knowledge.
Rio Red '91 Legacy SS
That being said, everything I post is accurate to the best of my knowledge.
Rio Red '91 Legacy SS
-
- Vikash
- Posts: 12517
- Joined: Sun Nov 03, 2002 2:13 am
- Location: USA, OH, Cleveland (sometimes visiting DC though)
- Contact:
I agree that it's primarily for looks, but wouldn't it flow a little better than the single outlet mufflers just because there's more cross-sectional area?
I'm just pulling numbers out of the air here, but two 1.5-inch-diameter outlets have a combined cross section of about 3.5 square inches. One 2-inch-diameter outlet has a cross section of about 3.14 square inches.
I'm just pulling numbers out of the air here, but two 1.5-inch-diameter outlets have a combined cross section of about 3.5 square inches. One 2-inch-diameter outlet has a cross section of about 3.14 square inches.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
-
- Moderator
- Posts: 9026
- Joined: Thu Jan 29, 2004 8:47 pm
- Location: Maryland www.andrewtechautomotive.com
- Contact:
I think flow is primarily dictated by inlet diameter (2.25"?), and the internals of the muffler. Any outlet, reguardless of size, is only going to flow as much as the inlet and internals will allow.
If anything, it's just to tune sound. By having a larger outlet, you decrease the velocity of the exhaust which makes for a low, non-I4 rumble.
If anything, it's just to tune sound. By having a larger outlet, you decrease the velocity of the exhaust which makes for a low, non-I4 rumble.
2009 Outback 2.5XT. 5MT. Satin White Pearl.
2009 Impreza 2.5i Premium. Blue.
[quote="scottzg"]...I'm not a fan of the vagina...[/quote][quote="evolutionmovement"]This will all go much easier if people stop doubting me.[/quote]
2009 Impreza 2.5i Premium. Blue.
[quote="scottzg"]...I'm not a fan of the vagina...[/quote][quote="evolutionmovement"]This will all go much easier if people stop doubting me.[/quote]
-
- Knowledgeable
- Posts: 1333
- Joined: Tue Oct 15, 2002 4:55 pm
- Location: Seattle, WA
- Contact:
-
- Knowledgeable
- Posts: 1312
- Joined: Wed Oct 16, 2002 10:44 pm
- Location: Northern Sonoma County
- Contact:
-
- Moderator
- Posts: 9026
- Joined: Thu Jan 29, 2004 8:47 pm
- Location: Maryland www.andrewtechautomotive.com
- Contact:
Yea, but everything is illegal in CA, so that doesn't surprise me.eastbaysubaru wrote:I like the twin outlet too. I think it's just much more stealth. I'd rather not give a cop a reason to pull me over if I can help it![]()
-Brian
Legacy92ej22t's car looks perfectly fine with a 4" rolled tip. Doesn't even really seem THAT out of place.
2009 Outback 2.5XT. 5MT. Satin White Pearl.
2009 Impreza 2.5i Premium. Blue.
[quote="scottzg"]...I'm not a fan of the vagina...[/quote][quote="evolutionmovement"]This will all go much easier if people stop doubting me.[/quote]
2009 Impreza 2.5i Premium. Blue.
[quote="scottzg"]...I'm not a fan of the vagina...[/quote][quote="evolutionmovement"]This will all go much easier if people stop doubting me.[/quote]
-
- Knowledgeable
- Posts: 5203
- Joined: Thu Nov 07, 2002 3:59 am
- Location: Cogan Station, PA
BAC5.2 wrote: Legacy92ej22t's car looks perfectly fine with a 4" rolled tip. Doesn't even really seem THAT out of place.

It looks really good actually. I was a little worried about how it would look before I put it on but as soon as I saw it I was immediately put at ease as it looks pimp!

The tip style can make a big difference when having only one large tip. Some scream rice, while others look great.
I like dual tips too but given the choice I'd stick with my 4" rolled tip.

-Matt
'92 SS 5mt. All go and no show. Sold :(
'94 Audi UrS4 Modded (new project)
'96 Outback 5mt.
'07 Legacy 2.5i SE
[quote="Redlined"]
Oh... and I hope the fucker get bunked with Gunter, arrested for raping Gorillas.[/quote]
'92 SS 5mt. All go and no show. Sold :(
'94 Audi UrS4 Modded (new project)
'96 Outback 5mt.
'07 Legacy 2.5i SE
[quote="Redlined"]
Oh... and I hope the fucker get bunked with Gunter, arrested for raping Gorillas.[/quote]
You were in quite the posting mood weren't youJasonGrahn wrote:You would.Legacy777 wrote:looks.......I like the smaller twin outlet personally.

Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
-
- Moderator
- Posts: 9026
- Joined: Thu Jan 29, 2004 8:47 pm
- Location: Maryland www.andrewtechautomotive.com
- Contact:
On a related note Matt:
What's the 4" straight tip look like? Are you going to keep it, or swap over the rolled tip?
What's the 4" straight tip look like? Are you going to keep it, or swap over the rolled tip?
2009 Outback 2.5XT. 5MT. Satin White Pearl.
2009 Impreza 2.5i Premium. Blue.
[quote="scottzg"]...I'm not a fan of the vagina...[/quote][quote="evolutionmovement"]This will all go much easier if people stop doubting me.[/quote]
2009 Impreza 2.5i Premium. Blue.
[quote="scottzg"]...I'm not a fan of the vagina...[/quote][quote="evolutionmovement"]This will all go much easier if people stop doubting me.[/quote]
-
- Knowledgeable
- Posts: 5203
- Joined: Thu Nov 07, 2002 3:59 am
- Location: Cogan Station, PA
Hehe, ya know, I haven't even unwrapped the axle back yet.
I guess I'll just have to go and take a look. 


-Matt
'92 SS 5mt. All go and no show. Sold :(
'94 Audi UrS4 Modded (new project)
'96 Outback 5mt.
'07 Legacy 2.5i SE
[quote="Redlined"]
Oh... and I hope the fucker get bunked with Gunter, arrested for raping Gorillas.[/quote]
'92 SS 5mt. All go and no show. Sold :(
'94 Audi UrS4 Modded (new project)
'96 Outback 5mt.
'07 Legacy 2.5i SE
[quote="Redlined"]
Oh... and I hope the fucker get bunked with Gunter, arrested for raping Gorillas.[/quote]
-
- Knowledgeable
- Posts: 5203
- Joined: Thu Nov 07, 2002 3:59 am
- Location: Cogan Station, PA
Well, it's actually a 3" straight tip. It's much more stealth looking then my 4" rolled tip. I really like my blingin' 4" but the sleeper value of the 3" is pretty sweet too. I'll probably just go with the 3" for now and who knows, maybe I'll change it later if I decide I want the bling.BAC5.2 wrote:On a related note Matt:
What's the 4" straight tip look like? Are you going to keep it, or swap over the rolled tip?

-Matt
'92 SS 5mt. All go and no show. Sold :(
'94 Audi UrS4 Modded (new project)
'96 Outback 5mt.
'07 Legacy 2.5i SE
[quote="Redlined"]
Oh... and I hope the fucker get bunked with Gunter, arrested for raping Gorillas.[/quote]
'92 SS 5mt. All go and no show. Sold :(
'94 Audi UrS4 Modded (new project)
'96 Outback 5mt.
'07 Legacy 2.5i SE
[quote="Redlined"]
Oh... and I hope the fucker get bunked with Gunter, arrested for raping Gorillas.[/quote]
-
- Moderator
- Posts: 9026
- Joined: Thu Jan 29, 2004 8:47 pm
- Location: Maryland www.andrewtechautomotive.com
- Contact:
It's a 3" straight tip? I could have sworn that Jon told me 4".
Well I'm even more sold now, lol. I've got a line on my bike, so fingers are crossed
Well I'm even more sold now, lol. I've got a line on my bike, so fingers are crossed

2009 Outback 2.5XT. 5MT. Satin White Pearl.
2009 Impreza 2.5i Premium. Blue.
[quote="scottzg"]...I'm not a fan of the vagina...[/quote][quote="evolutionmovement"]This will all go much easier if people stop doubting me.[/quote]
2009 Impreza 2.5i Premium. Blue.
[quote="scottzg"]...I'm not a fan of the vagina...[/quote][quote="evolutionmovement"]This will all go much easier if people stop doubting me.[/quote]
-
- Knowledgeable
- Posts: 5203
- Joined: Thu Nov 07, 2002 3:59 am
- Location: Cogan Station, PA
Sweet, have you got anyone looking at the '95 yet? I know you posted it in the parts shed here. Did you post it in the classified's at nabisco and I-club?
I just got all my new gaskets (DP, UP, CP and header to manifold) yesterday and picked up an Autometer Phantom series EGT and Boost gauge too.
I'm really stoked to replace my shitty OBX boost gauge. Note to everyone: Do not to buy OBX gauges, both vrg3 and I have had 'em and they both read 3-5 psi low on boost and in vacuum.
Kind of back on topic, I was talking to Jon and he said he could probably get dual tips on the CES systems but it would require an additional fee of roughly around $150 USD. That's probably not set in stone though as it was mentioned kind of casually. It's a bit much but the sleeper value of looking stock would be killer.
I just got all my new gaskets (DP, UP, CP and header to manifold) yesterday and picked up an Autometer Phantom series EGT and Boost gauge too.


Kind of back on topic, I was talking to Jon and he said he could probably get dual tips on the CES systems but it would require an additional fee of roughly around $150 USD. That's probably not set in stone though as it was mentioned kind of casually. It's a bit much but the sleeper value of looking stock would be killer.

-Matt
'92 SS 5mt. All go and no show. Sold :(
'94 Audi UrS4 Modded (new project)
'96 Outback 5mt.
'07 Legacy 2.5i SE
[quote="Redlined"]
Oh... and I hope the fucker get bunked with Gunter, arrested for raping Gorillas.[/quote]
'92 SS 5mt. All go and no show. Sold :(
'94 Audi UrS4 Modded (new project)
'96 Outback 5mt.
'07 Legacy 2.5i SE
[quote="Redlined"]
Oh... and I hope the fucker get bunked with Gunter, arrested for raping Gorillas.[/quote]
-
- Moderator
- Posts: 9026
- Joined: Thu Jan 29, 2004 8:47 pm
- Location: Maryland www.andrewtechautomotive.com
- Contact:
No interest in the 95. I'm not driving it anymore. I'm just putting miles (almost 300 per week) on a car that I'm trying to sell.
So the 95 get's parked and I drive the green machine 93 Ranger until I sell the 95.
So the 95 get's parked and I drive the green machine 93 Ranger until I sell the 95.
2009 Outback 2.5XT. 5MT. Satin White Pearl.
2009 Impreza 2.5i Premium. Blue.
[quote="scottzg"]...I'm not a fan of the vagina...[/quote][quote="evolutionmovement"]This will all go much easier if people stop doubting me.[/quote]
2009 Impreza 2.5i Premium. Blue.
[quote="scottzg"]...I'm not a fan of the vagina...[/quote][quote="evolutionmovement"]This will all go much easier if people stop doubting me.[/quote]