08 2.5i Headers?

[Fastrnu06]

Anyone know of what headers have the same bolt pattern from the older models that could bolt up to the engine and just modify it otherwise to fit? Some of the ones I found are ridiculously priced compared to the older ones, wondering if I could fab somethin to make it work to get the boxer rumble back, with these new 2.5i I have an exhaust for it an its not a very deep rumble an past 3k it sounds kinda "raspy" :machinegunleft:, I was told the new 2.5i have equal length headers and thats why it doesnt have the original boxer rumble.

Any ideas or thoughts would be greatly appriciated! :thumbsup:

[williaty]

The bolt pattern is the same, however, none of the rest of the exhaust is. There are currently no bolt-on headers available for your car that are compatible with the rest of your exhaust. I would also not expect headers to fit your car to be developed, considering the 2.5i is not seen as a "modable" car. All the R&D money is going to the WRX and STi.

[Fastrnu06]

The bolt pattern is the same, however, none of the rest of the exhaust is. There are currently no bolt-on headers available for your car that are compatible with the rest of your exhaust. I would also not expect headers to fit your car to be developed, considering the 2.5i is not seen as a "modable" car. All the R&D money is going to the WRX and STi.

Well im not really looking to mod the car persay, I just want the deep boxer rumble, if the bolt patterns the same then were good to go which is really all I wanted to know cuz I know some people who could fab it with a 2.5" pipe to get it to the cat. I noticed they dont really make anything for a 2.5i, but itll only be a 2.5i for 2 more years.

[williaty]

No, still won't work.

Your header and cat are kinda this integrated dealie. You'll have to take a GC/GD style header, GD/GC style cat section, and then have a custom midpipe made to fit your stock axleback. You're looking at about a thousand dollars just to make noise.

Are you really going to be that guy?

[Fastrnu06]

Axle back as in the pipe that connects to the headers? Cuz if your talkin about the rear ive already got a 2.5" Borla cat-back I bought used pretty dirt cheap that my buddy had on his '09 WRX b/c he went bigger in diameter. When I called this place about putting headers on they werent sure wether it would work or not they said it would bolt up, but there not sure of clearance issues otherwise elsewhere underneath the motor where all the pipes come to one b/c theyve never tried it. If that cleared why wouldnt it be possible to fab a custom pipe from that point to the front of the cat?? Im not sure what the GC/GD header/cat is

No, still won't work.

Your header and cat are kinda this integrated dealie. You'll have to take a GC/GD style header, GD/GC style cat section, and then have a custom midpipe made to fit your stock axleback. You're looking at about a thousand dollars just to make noise.

Are you really going to be that guy?

[williaty]

No, axleback is the very last piece with the muffler in it.

GC and GD are chassis codes. Basically, I was saying all the Imprezas from 1997-2005 have one form of exhaust while the newer cars have a totally different one. All headers currently available to bolt the the EJ253 engine (yours) are the 1997-2005 style. You'll have to custom make a complete exhaust using old-style headers and cats, and then a custom fabbed tube to connect to the back half of your current exhaust.

[azchris]

you can make it work. just go to a muffler shop, and they can run the pipe from the header you get to anywere it needs to go. you will probably need an o2 extention wire for the rear o2 seeing as you will have to put it on a little down stream. the factory on has the cat kinda built in to the manifold. I did all of this on my N/A 08 fozzi. I would suggest the xs power header. this was the best to modify on to the n/a car. all the other headers, the flange for the uppipe kinda points up toward the turbo. these are a pain in the ass to make work.lol

[williaty]

Once you're doing custom work, though, just get a NA-specific header. It's easier to start from and the fab work isn't as weird.

[azchris]

ps i got my o2 extention wire from a place called caspers electronics. http://www.casperselectronics.com/store2/product_info.php?cPath=23&products_id=1395

[azchris]

no because the n/a specifis headers run to the drivers side and i think thats more of a pain in the ass. just my .2 cents though

[williaty]

No, they're all on the passenger's side, just like turbo.

[azchris]

no you my want to look again dude. the obx n/a header runs strait back right off the heads. one pipe on the pass side one pipe on the driver side.http://www.sparktecmotorsports.com/h10798s.html the borla and borla replicas run on the driver side...http://www.topspeedauto.com/ProductCart/pc/viewPrd.asp?idcategory=47&idproduct=453

[azchris]

http://shop.ebay.com/i.html?_nkw=2.5%20subaru%20header&_trkparms=65%253A12%257C66%253A2%257C39%253A1%257C 72%253A3018&_dmpt=Motors_Car_Truck_Parts_Accessories&_trksid=p3286.c0.m14.l1513&_pgn=1

[williaty]

I have actually owned both of the headers you link to, as well as the 97-05 stock headers, the 06+ stock headers, and the Techworks Engineering 4-2-1 HO headers. They all have the downstream flange on the right side of the car. I will concede that the 06+ stock headers, if you count the almost-integral cat section, kinda-sorta end on the centerline.

[azchris]

dude are you retarded. the header tubes run on the driver side of the car passed the oil pan passed the cross member then after the cross member they turn towards the passager side go under the tranny bellhousing then once they are back onto the pass side they turn toward the rear of the car.

[azchris]

http://www.subaruforester.org/vbulletin/f115/battlewagon-muds-outback-55836/index8.html#post697331

[williaty]

dude are you retarded. the header tubes run on the driver side of the car passed the oil pan passed the cross member then after the cross member they turn towards the passager side go under the tranny bellhousing then once they are back onto the pass side they turn toward the rear of the car.

OK, first of all, you're talking about the primaries, not the downstream flange, which is what the rest of the conversation has been about. Second, what you're saying about the primaries is ONLY true for the Borla and Borla replica headers. They do run the right hand side primaries in front of the engine to the left hand side, then run then under the engine on the left hand side, then cross back to the right hand side for the final merge and the flange.

All versions of the stock headers, the OBX headers you linked to, the old RalliTek headers, the old MRT headers, the old Cobb headers, and all the versions of the TWE headers run down both sides of the engine and then merge on the right hand side, just like a turbo header.

Finally, the easiest and cheapest way isn't going to be using that one turbo header. It's going to be using a Borla rep from ebay and fabbing a simple pipe to connect it to the rest of the exhaust. If cats are necessary, you can then use a off-the-shelf 97-05 high flow cat pipe and then custom fab the end of that to the rest of your stock exhaust.

[williaty]

dude are you retarded.

Also, are you sure you want to start calling someone retarded when you just tried to post:
file:///C:/Users/CHRISW%7E1/AppData/Local/Temp/moz-screenshot.png
Linking to the C: drive, revealing noobs since 1992.












(I love when the new-post alert email goes out before someone can redact their hilarity)

[azchris]

no omg i hate this arguing crap. The turbo headers dont even go passed the cross member. the up pipe flange is on the pass side side in front on the cross member...http://www.xs-power.com/subaru-turbo-headers-wrx-sti-2.htm.
this is the header i recomend. this is the easest to make work and will still yeald a boxers sound....http://www.xs-power.com/subaru-turbo-headers-wrx-sti-1.htm

[azchris]

Also, are you sure you want to start calling someone retarded when you just tried to post:
file:///C:/Users/CHRISW%7E1/AppData/Local/Temp/moz-screenshot.pngLinking to the C: drive, revealing noobs since 1992.












(I love when the new-post alert email goes out before someone can redact their hilarity)

yea you got me dude. sorry im not that great with a computer. sorry but i will out fabricate, weld and design your ass any day!

[williaty]

At almost three times the price of the Borla rep and absolutely no easier to work with, why would the OP do something that stupid?



yea you got me dude. sorry im not that great with a computer. sorry but i will out fabricate, weld and design your ass any day!
Out weld? Sure, I can stick two pieces of metal together reliably but it looks like ****.


Out design? Well, I'd wager there are currently more parts I've either designed myself, or worked as part of a team to design, running around on Subarus world-wide than you.

[azchris]

you know what. i give up. your a internet tough guy and i beat you get called a know it all alot.
The OP can do what ever he would like!

[Fastrnu06]

I didnt mean to cause an argument between anyone, I just wasnt sure what headers could bolt up to my motor, I appriciate the answers, ill look into those headers an the O2 extension harness more, what length did you purchase?..I can fab something in even if I have to buy a high flow cat or whatever, as long as you can grind an weld it can still look good even if its not "made by a proper company". It just paying attention to your clearances an moving parts.