STI Exhaust
Moderators: Helpinators, Moderators
STI Exhaust
I have a line on a relatively new 04 STI turbo back exhaust. Has anyone done this? Any problems or fitment issues. What were the benifits?
Thanks for any info
Frazer
Thanks for any info
Frazer
04 modified XT
99 LGT Limited
99 LGT Limited
you're going to have to increase the overall length of it. I'm not sure where but the impreza has a shorter exhaust system since the wheelbas is shorter.
Rio Red 90 Legacy LS AWD 174k
Liquid Silver 92 SVX LS-L 88k
[url=http://folding.amdmbpond.com/FoldingForOurFuture.html]Do you fold?[/url]
I'm on First and First. How can the same street intersect with itself? I must be at the nexus of the universe.
Liquid Silver 92 SVX LS-L 88k
[url=http://folding.amdmbpond.com/FoldingForOurFuture.html]Do you fold?[/url]
I'm on First and First. How can the same street intersect with itself? I must be at the nexus of the universe.
-
- Moderator
- Posts: 9026
- Joined: Thu Jan 29, 2004 8:47 pm
- Location: Maryland www.andrewtechautomotive.com
- Contact:
It's identical to the stock WRX system (minus a mounting point difference because of the wider tranny tunnel). The stock WRX system is almost identical to the stock Turbo Legacy system.
Not worth it unless it's free, IMO.
Not worth it unless it's free, IMO.
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]
-
- Fourth Gear
- Posts: 1220
- Joined: Mon Oct 21, 2002 9:53 pm
- Location: Ottawa, Ontario, Canada, Now Sioux Lookout
I agree, the only benefit from an STi exhaust is the muffler with STi stamped into it. The system may sound a little better, but who knows on a Legacy. I'd rather spend a bit more money and get a nice 3" turbo-back.
Mark,
Mark,
1991 Turbo Sedan, Aspen White 5MT, Sold RIP
1994 Turbo Sedan, Crimson Pearl 5MT, from British Columbia-no rust!
1994 Turbo Sedan, Crimson Pearl 5MT, from British Columbia-no rust!
The STi muffler flows better than the WRX system. But if you look at it.... it's still gots plenty of backpressure. I could have got one for cheap until I saw the little piping do two 90 degree bends before entering the muffler. It just doesn't look right after staring at 3 inch exhaust going straight back all the way from the downpipe.
1993 WMP BC6 5MT EJ22T 9psi 3.9:1 213k 205/55R16
62.6 m/s @ 0.66 bar. Gotta love boost. :)
62.6 m/s @ 0.66 bar. Gotta love boost. :)
-
- In Neutral
- Posts: 22
- Joined: Sat May 08, 2004 6:47 am
- Location: New York -- Westchester
- Contact:
We've had the CES Racing (WRX) exhaust on our STI, and it went on just fine. There is an issue, but it is not with the fit. There are reports of boost creep with free-flowing 3" systems on the STI, and there is some evidence of boost spiking. We think we know how to fix the spike (simple "tweak"), but the creep (if it can be documented) may require a more serious mod (like porting the wastegate).
If you're interested (here), I'll post the results of what we find, though there is no telling how long it may be before I can do much with my STI (it is sitting, on it's rotors, having been dropped off by the insurance company, as a total rightoff)
If you're interested (here), I'll post the results of what we find, though there is no telling how long it may be before I can do much with my STI (it is sitting, on it's rotors, having been dropped off by the insurance company, as a total rightoff)
Jeff
That Sucks
Sorry to hear about your sti, what will you do with it??part it out Just kidding, Thanks for the info Guys, this has been very helpful, maybe i'll invest my money elsewhere...
Thanks
Frazer
Thanks
Frazer
04 modified XT
99 LGT Limited
99 LGT Limited
the mid pipe or the axle back ( your call ) needs to be extended 6 inches and one hanger on the muffler needs to be lenghtenes and the midpipe hanger needs to be moved if you want. i didnt move it on my tbe because the hangers for the dp and the axle back were suficcent in holding it up
-jason
[quote="Scoobyniteowl"] Chasin' @$$ is a great form of exercise and if you do get any, then that is more exercise[/quote]
[quote="Scoobyniteowl"] Chasin' @$$ is a great form of exercise and if you do get any, then that is more exercise[/quote]
-
- Knowledgeable
- Posts: 5203
- Joined: Thu Nov 07, 2002 3:59 am
- Location: Cogan Station, PA
Are you trying to do it in SS? Call around to piping companies. Also try places that work on diesel trucks, or places that make Pharmacutical equipement. I got mine from the later.Mackenzie wrote: but where would i get a 3inch ss pipe that is six inches?
If you're in a larger city then there should be exhaust shops that work with SS.
-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]
hey guy i just brough the hallman boost controller now i read that i should have " One is a free flow exhaust. Backpressure causes heat in the turbo and as small as the stock IHI turbo is already, you do not need anymore. At the least, you should have a 2.5" or 3" cat-back system with a very free-flow muffler. It would be ideal to have the downpipe since that is probably the biggest restriction in the system"
dunno which should a get my achivement would be around 200-300hp.
i try looking on internet about downpipe i dint find anything usefull
anyone have suggestion
dunno which should a get my achivement would be around 200-300hp.
i try looking on internet about downpipe i dint find anything usefull
anyone have suggestion
Last edited by yazmo on Tue Jun 17, 2008 4:40 am, edited 1 time in total.
-
- Fifth Gear
- Posts: 3526
- Joined: Wed Jul 18, 2007 5:07 pm
- Location: Whammy!
-
- In Neutral
- Posts: 21
- Joined: Sun Aug 16, 2009 12:54 am
- Location: Renton, WA
-
- Fifth Gear
- Posts: 3526
- Joined: Wed Jul 18, 2007 5:07 pm
- Location: Whammy!
-
- Fifth Gear
- Posts: 3526
- Joined: Wed Jul 18, 2007 5:07 pm
- Location: Whammy!
The WRX header is identical, except for the O2 sensor hole. AFAIK, the STi is also the same, diameter and all.
The WRX turbo-back exhaust diameter is 2.25", where the STi is 2.5" AFAIK.
My STi exhaust is extended at the midpipe, and the hanger points on the muffler are moved.
The WRX turbo-back exhaust diameter is 2.25", where the STi is 2.5" AFAIK.
My STi exhaust is extended at the midpipe, and the hanger points on the muffler are moved.
1991 SS build thread: http://bbs.legacycentral.org/viewtopic.php?t=40430
-
- In Neutral
- Posts: 21
- Joined: Sun Aug 16, 2009 12:54 am
- Location: Renton, WA
Good info! thank you!ScottyS wrote:The WRX header is identical, except for the O2 sensor hole. AFAIK, the STi is also the same, diameter and all.
The WRX turbo-back exhaust diameter is 2.25", where the STi is 2.5" AFAIK.
My STi exhaust is extended at the midpipe, and the hanger points on the muffler are moved.
05 LGT Wagon & 91 SS
-
- Third Gear
- Posts: 662
- Joined: Fri Nov 21, 2008 1:27 am
- Location: Colorado, north of Highway 52
- Contact:
I can say for sure that the STi header is identical to the Legacy unit besides the O2 hole (for which there's an undrilled boss on the Legacy one). I had both in my garage at the same time, and I only used the STi header because the other one was caked in old mud.
http://www.slodriveracing.com
-92 SS 5MT- EJ20H swap, Haltech standalone ECU, TD04, FXT TMIC, 3" exhaust, STi/AGX struts, JDM 5-speed, 4.111 LSD rear, Blitz EBC, etc.
-'93 L Wagon - Pink Roll Cage - "Dirty Leg"
-And more!
-92 SS 5MT- EJ20H swap, Haltech standalone ECU, TD04, FXT TMIC, 3" exhaust, STi/AGX struts, JDM 5-speed, 4.111 LSD rear, Blitz EBC, etc.
-'93 L Wagon - Pink Roll Cage - "Dirty Leg"
-And more!