katalyst

the intake piping is different on the GTs due to the turbocharging, so none of the intakes are compatible. but most would just suggest sticking with a panel filter since there can be issues with the ram intakes which are briefly discussed on the first post as well

we have members on here running it on their 2.5i so it fits for sure i don't see why the LGT would even need them since they have plastic intake manifolds that don't nearly heat up as much during normal engine operation

i would agree that the spacers would most likely do no harm to the engine, but still modifications always put you on an uphill battle on warranty claims. btw hanger, i'd like to know how the z/s pipe works out too, i was really contemplating getting it myself.

i don't think endlinks are as much of a problem as the mounting brackets with the sway bars, if you ever get under your car and take a look at them; you will realize that it is definitely a weak area attached pic from another member: http://i70.photobucket.com/albums/i120/libertygt/Dead%20Alpaca/Mar07003.jpg

they'd probably void it since it alters the original design of the engine

oh wut! when did you get a set of these hanger?? looks great on your car

^ probably HDR and .raw editing

it's true, i had struts off a GT on my car; but now i am running coilovers

^ the strut tower bar should be universal between 05-09 and the 2.5i and LGT use the same exterior shell so the dimensions between the two strut towers should be the same edit: a strut tower bar wouldn't really give you too many gains if this is the first suspension mod to your car, most suggest going with a rear sway bar first, then the struts/springs then maybe the tower bar if you really want but it's more bling than anything

bumper looks sweet, i think you should put a subaru badge in the middle of the grill to top it off

fredbeansparts is usu ok shtbxr22, blackfang; thanks

np, glad it's been useful i'm a little confused about the clutch situation now, my previous understanding was that the 5MT transmissions between the LGT and the 2.5i were not compatible because one was a push type design and the other was a pull (i don't remember which is which at the moment) but now apparenlty tha'ts not true and both are the pull type trannies (according whitetiger inanother thread ?) and that LGT clutches can be fitted onto the 2.5i 5MT ??? (seanrose is about to do a turbo swap and fit his 5MT with a LGT clutch) blackfang do you know if that's possible at all or if you'd have more info on that?

updated with the 25mm tribeca front sway info now

hahaha, well what can i say, they are probably the one company that gives the most support to the 2.5i so it's hard to avoid it btw i do not work for rallitek or have any association with them

i don't think any 2.5i owners have officially taken their car on a dyno before and after parts so it's tough to say, but also because most of us realize the bolt-on modifications really only net minimal gains. the ones included under section #7 are really where they would make an impact. otherwise for the high flow panel filter it'd be probably be like 1hp at most haha, to me i didn't notice any difference in the power but the combustion cycle just felt smoother as the engine was breathing easier. light weight crank pulley nets like maybe 3-5hp? the engine revs a bit more freely but how much power that amounts to is probably not all that much either exhaust mods, if you're just doing axlebacks, you're effectively just swapping the mufflers so it doens't really make a power difference, just a difference in the exhaust note

thank you Gire, 2.5i owners will now have a central source for some info and hopefully not have to bother GT owners as much haha, i just started yesterday but i definitely had a couple days to kill before that.

i updated #7 to include the cams kit for people who really want to

that is true, but they're not exactly "bolt-on" so i did not include them in the short list of power modifications as this is just a basic map for new owners to get a foothold on a direction they want to go. i mean there's a lot of things provided you have time and money, but we'll just start simple.

np guys, glad that you've found it useful. bitz: they are different platforms in that the parts are not interchangeable, ie: DBA rotors or hawk hps pads for the GT are not direct fitment for the 2.5i but in terms of dimensions and hardware a full GT brake swap is most definitely possible and has been performed by members on this board, particularly N.sane, i know of for sure has done it, link to his post re: swap link 1 http://www.legacygt.com/forums/showpost.php?p=2427219&postcount=672 link 2 http://www.legacygt.com/forums/showpost.php?p=2427219&postcount=666 but reading over the FAQ i can see how it was confusing the way i worded it, i changed it to clarify that. hopefully makes more sense now. hm i didn't think about the front underbraces but you bring up a good point, i've never really looked into bracing just because i figure most people wouldn't really bother with them on a DD but in the rear it should bolt up the same... i guess i'll have to investigate that a little more. or maybe someone else can chip in regarding this? edit: i just reviewed N.sane's info that he sent me re: 2.5i suspension and he does mention that the front underbracing will not fit; also edited the FAQ to reflect that info (thanks bitz for bringing that to my attention)

This FAQ is a summary of commonly asked questions and comments that I’ve come across. Thought I would throw this together as there seems to have been an increase of 2.5i owners on the forum as of late. 2005-2009 BP/BL Subaru Legacy 2.5i 1) Engine- How can I get more power out of my car? Tuning seems to be the one area which offers the most performance gains. NORULZleggy has brought to my attention that he has had good success tuning his car with Edward at XRT performance. Maps and logging can be conveniently sent online. Contact: info@xtremeracingtuning.com see thread below for more details: http://legacygt.com/forums/showthread.php/2008-2-5i-n-tuning-has-started-249489.html May also be applied to 3.0 / 3.6R models. After that, there are a few “bolt-on” modifications that can net you minimal gains: -- high flow intake panel air filter: increase flow of air towards engine. many types available from several manufacturers. AVO filter is used with high success from many members due to its ease of maintenance (no oil required) and easy cleaning (soap + water) -- JDM Kakimoto Intake chamber available from Japan Parts, increases efficiency by replacing the stock intake chamber https://www.japanparts.com/parts/detail/38447 -- throttle body spacer: supposedly will allow for increased efficiency in combustion by tumbling the incoming air charge. Available from Group-A -- lightweight crank pulley as well as alternator/steering pulleys decrease in rotational mass of the engine will allow it to spin more freely. Available from several manufacturers, Perrin, Group-A, Cobb etc -- intake manifold spacers (potentially has greatest benefit): if you examine the engine assembly you will note that the intake manifold sits on top of the engine block and as such becomes very hot over the course of engine operation, manifold spacers separate the intake manifold and decrease the temperature of the incoming air. Available from Grimspeed http://www.grimmspeed.com/images/product_images/phenolic_spacer_coldhot_diagram_2.jpg http://www.grimmspeed.com/images/product_images/phenolic_spacer_coldhot_diagram_3.jpg (diagrams taken from Grimmspeed website illustrating the concept for STi engines which feature a metal intake manifold as well along with TMIC) 2) Intakes- Can I put CAI on my car to increase HP????? Many inquire about the use of a CAI (cold air intake) for gains but particularly with intakes that replace the stock air box (cone type filters) it can throw off the MAF sensor and cause the engine to run too lean, or rich to compensate. Some have also run into issues with CELs. There is a more detailed article here from NASIOC: http://forums.nasioc.com/forums/showthread.php?t=1471819 Generally it’s not recommended and is more reliable to use a high flow filter (see above) with the stock air box. However, there are also members who have had success with CAIs, so not to say it’s impossible. Usually intakes for the Impreza 2.5RS will fit as they have essentially the same basic engine design. 3) Exhaust “Where can I get the boxer rumble that Subaru is so famous for?” the rumble that is infamous on WRX and STi’s (also the LGT) is due to the unequal exhaust length (UEL) headers. Unfortunately the 2.5i features equal length headers and thus does not emit the noted boxer rumble. However, there are several aftermarket exhaust options available, though they will not give your car the boxer rumble sound, they can still change the exhaust note favorably. All axleback options for the LGT will bolt right up to the 2.5i. The SPTv2 CBE has also been successfully installed on a 2.5i as well. This link http://legacygt.com/forums/showthread.php/exhaust-audio-video-clip-compilation-thread-2-5i-edition-130408.html contains a compilation of aftermarket exhausts for the 2.5i Aftermarket UEL headers can be fit onto the 2.5i, but at the moment there are no plug and play solutions available. See this thread for more details on how to customize the header setup for the 2.5i http://legacygt.com/forums/showthread.php/subie-boxer-rumblei-153134.html 4) Suspension Modifications All of the Legacy GT suspension components are interchangeable with the 2.5i, as such, all aftermarket components for the LGT will also work in favor for the 2.5i The only suspension piece that is not compatible is the front sway bar, however Rallitek has been kind enough to fabricate a 2.5i specific front sway bar. It is advisable to use reinforced mounts and brackets when installing sway bars as this has been a noted weak point in our suspension (both the LGT and 2.5i). In addition to the Rallitek front sway, it has been found that the 25mm front sway from the Subaru Tribeca is compatible with the 2.5i, more on that here: http://www.legacygt.com/forums/showthread.php?t=111718 edit: aftermarket front lower arm bars/underbracing are also not compatible, this is due to different configuration of the exhaust piping and heatshield which prevent the FSB and bracing from fitting correctly. With regards to the OEM struts, it is generally believed the 2.5i has the same struts with slightly softer valving, but this is unconfirmed. The external housing and suspension assembly is the same however, thus all Legacy GT parts, OEM and aftermarket will bolt right up, including: -- coilovers -- aftermarket struts (Bilstein, Konis, Tokico, Ohlins etc) -- aftermarket springs -- rear sway bar -- strut tower bars -- rear sub-frame braces -- misc components (LCAs, LCA/steering bushings etc) -- etc (they all fit) This is probably the single greatest area that 2.5i owners can take advantage of with regards to aftermarket modifications and is likely the most worthwhile investment for your aftermarket dollars. Coupled with a set of top rubber, the 2.5i can be an excellent machine through twisties or auto-x. 5) Brakes LGT and the 2.5i do not share the same brake platform and thus aftermarket LGT brake components *are not* direct fitment to the 2.5i's brake system (pads/rotors/calipers are diff sizes). However, a full LGT brake swap is possible and theoretically the aftermarket BBK options (Brembo etc) for the LGT should also fit on the 2.5i but likely not necessary as the LGT brake system should suffice (particularly with aftermarket pads and rotors) If a full swap is not something you'd want to tackle, there are some aftermarket brake pads options from Hawk and Carbotech specific for the 2.5i system. Braided SS lines from the GT are able to be swapped in as well to stiffen pedal feel. Additionally there is a Wilwood and RacingBrake kit out specific for the 2.5i that swaps the front calipers and rotors. edit: Ion Performance has now released a slim 4-pot performance brake caliper which is compatible with the 2.5i and will fit with OEM wheels or other 17" applications http://www.legacygt.com/forums/showthread.php?t=121599 6) Transmission The clutch for the 5MT in the 2.5i is not interchangeable with clutch types from the LGT. Thanks to research from members here, we have found that Exedy offers an aftermarket clutch compatible with the 2.5i 5MT transmission. KSB04 is an Exedy OEM replacement 15801 is product number for the Exedy Stage 1 clutch kit (rated to 196lb-ft torque) FF02 is model number for the Exedy lightweight flywheel. We have also found that the 08 GT rear limited slip differential is compatible with the 2.5i manual transmission and this has been successfully mated to take advantage of the performance and safety gains vs the open diff on the stock setup. The 05-07 5MT rear differential is also theoretically compatible with the 4EAT transmission as the ratios are the same at 4.111:1 but this has not been attempted on any cars yet. 7) Exterior LGT and 2.5i share a common exterior shell with noticeable difference being the 2.5i does not have a hoodscoop as we do not feature a top-mounted intercooler for a turbo. Thus installing a hoodscoop would not really be of any benefit to your engine. Additionally the 2.5i hoods are aluminum like the GT hoods, therefore there wouldn't really be any weight savings from swapping hoods (or swapping to CF). However, if you are interested in aftermarket lips spoilers or JDM conversions, these will fit and bolt right up. Additionally the wheel sizes are the same at 17x7 with a 5x100 bolt pattern and +53 offset from the factory, earlier models ca 2005/06 came with 16" OEM wheels occasionally but aftermarket wheels for LGT in 5x100 pattern will be fine for all models; generally recommended you stay around +48 offset or higher for correct fitment, but lower offset can be done with some fender modifications. 8) Engine cont'd - “But I REALLY want to increase the power on my car, WHAT CAN I DO???” AVO Japan has kindly been working on a low PSI turbo kit for our vehicles. The design is based of the kit that they have provided for Impreza 2.5 owners the past and has been installed successfully in many applications. see link below for install on AVOs outback test bed: http://legacygt.com/forums/showthread.php/avo-turbokit-install-146784.html as of 3/25/2011 the kits have been manufactured and shipped for the 2.5i, please visit AVO's website for more information: http://www.avoturboworld.com/avoshop/turbokit-deposit-p-111.html as of 5/2011 members on this board have officially installed the turbokit on their vehicles, in particular member 1stick3pedals' thread has some useful information on the install: http://legacygt.com/forums/showthread.php/avo-turbo-kit-1000-miles-later-162583.html Rallitek has also put out an aftermarket camshaft kit for the 2.5i which supposedly can create gains of 20hp (crank, I believe). A tune and use of their valve spring kit when installing these is highly recommended (ie. necessary) http://www.rallitek.com/raca062.html Rallitek does offer some other internal components that can allow the hardcore 2.5i enthusiast to really build up their motor. For most applications, I would suggest sticking with what has been laid out in points 1-6 as those are all tried and reliable options from members here. But for more information on internals, one member here has posted logs and additional information here in this thread: http://legacygt.com/forums/showthread.php/2007-2-5i-cams-exhaust-intake-etc-155249.html --- Hopefully this guide will serve as a basic map for new 2.5i owners coming to this board. I have put together this guide based on some of my experiences in modifying my vehicle. There may some editing that will be required, since I don’t know EVERYTHING but I’m hoping fellow members can chip in as the guide is really a summary of the collective experience of 2.5i owners on here who have tried many things and have discussed many aftermarket components and issues re: them. So thank you to everyone who has contributed to the N/A section over time and LGT.com as a great place for all this information. Also special thanks to N.sane for helping contribute to the FAQ and NORULZleggy for contributing feedback on his tuning experiences. Special thread of note: Paul Hansen from AVO has documented a number of installs / repairs on their 2.5i N/A project Outback, very useful thread with excellent walkthroughs and tips. LINK HERE --> http://legacygt.com/forums/showthread.php/avo-project-outback-part-1-140263.html

^ damn you with your teaser shots

bumping this one up, got a question for christurismohk so for securing the plugs, did you just use foam and double sided tape? is there anything else i should use? also what type of foam did you use? as for removing the dash, any particular tools needed? how did you disassemble the clear face in front of the gauges? looks like there are 3 screws according to the "pix" but not sure how you got to them

ah yea, i haven't seen any recent pics of his damd legacy

damn that's hot, i really wish i could score a set of these

05-07 BSM GT with tinted windows, green MA plates at planet subaru today