400hp wrx turbo. More like 370whp on E85.

400hp wrx turbo 00+ Expected Power: 350–1,2000 wheel-horsepower. Jun 17, 2014 · 2011 wrx stock turbo capabilities Newbies & FAQs. You will never reach 400whp with the stock vf52. 5 or the /r/WRX is a place for Subaru fanatics to show off their rides, discuss modifications, mechanical issues, industry news, and more. 4-liter boxer turbo. Extreme Turbo Systems; Forced Performance; SteamSpeed; SoCal Performance compressor upgrade; 1) Extreme Turbo Systems. It is not a place to buy/sell/trade or spread negativity/hate. Introducing our Brand New ETS Subaru WRX '22+ Turbo Kit for the VB Chassis WRX! This QuickSpool kit is offered with Garrett G25, G30 or G35 Turbocharger options that employ the factory electronic wastegate for ease of tuning with optimal boost control. ok so i own a 2011 wrx hatchbackcurrently running a full turboback exhaust, intake, boost control solenoid, and bpv. 4L turbo mill putting down 271 hp at 5,600 rpm and 258 lb-ft of torque from 2,000-5,200 rpm. 5 with some supporting mods. 20,000, 2 units failed. Now I have built my new engine. 0L, comes single/twin scroll and is good for 380whp with 16g/18g spool) FYI bigger turbos spool later, so a 500whp turbo can spool so late you might get 1500RPMs of power if not done right. Go ahead and make the wrx gt a wrx with a sti transmission and drop the cvt only aspect. 0 liter, or just find a performance block to swap in, forged internals, dog box transmission, upgraded differentials/axles, beefed up the a** turbo, supporting mods. 5 thats an sti and i can get an sti motor but how much better would that be than just putting a big turbo,exhaust injectors,andfmic on the 2. Come join the discussion on performance modifications, accessories, turbo upgrades, maintenance and more! Feb 12, 2006 · This turbo is good for 400HP and used on JDM STI from 2003 onwards. RIP 5 speed. We get asked all the time how to accomplish certain HP numbers on various platforms. 4-liter turbocharged boxer four-cylinder making 400 horsepower (298 kilowatts) and 361 pound-feet (490 Newton-meters) of Feb 26, 2020 · Today's WRX STI uses the venerable EJ25 turbocharged 2. 5L, big turbo, and better gears (not to mention brakes and suspension). There are a few great stock location turbos that will bolt right in and make 350-400 on 93 octane with your supporting mods. ) Killer B 2. I have a header and a 3" turbo back exhaust but that's it. im interested in making more power. 4-liter turbocharged boxer engine with no less than 400 HP. The steps I will be doing are as follows: First set of upgrades: AEM CAI Cobb AP Cobb Catd DP Invidia Q300 CBE Second set of upgrades: Perrin FMIC HKS Fuel Upgrade Kit (800cc injectors) Forged pistons (don't know which yet) Uppipe (don't know which but possibley Cobb) Third set of upgrades: Jul 20, 2010 · Walbro 255lph HP Fuel Pump - $70 SPT Subaru WRX STI Turbo Heat Shield 08-10 - $75 Perrin 04-08 STi /LGT/FXT/06-08 WRX (06+ WRX requires modification to oil cooler It's extremely disappointing. Skip to content. and as they said above ## gonna be lookin at a lot of maintence $$$. The WRX's stock high pressure fuel pump and direct injectors can handle the fuel needed for those levels of power, the only upgrade would be a new low pressure fuel pump to handle the e85 (but both WRX and STI would need this). Sizing is key!-EBCS (aids in spool and boost control) Oct 29, 2006 · 18g turbo, aps fmic, pe 650 injectors, fuel pump, turbo manifold, tbe, access port, turbo inlet pipe, aps cold air intake, aps bov, and a great tune will get you 350 awhp and ~ 400 hp at the crank. And in some cases, an overly large intercooler core could hinder the airflow going to your radiator. Swivel-type nipple allows more room for routing hoses. Designed for EJ25 engines, it features a 6-blade billet compressor wheel and a 360° thrust bearing for Jan 23, 2017 · -Bigger turbo (Blouch makes a great bolt on, the 1. 5DOM XTR is designed around the 2. Key Features: Capable of up to 400 hp while still maintaining great throttle response and mid-range power / torque. With power transmitted only to the Rear Wheels t Oct 5, 2008 · element tuning gt52 turbo and supporting mods, rotated 30 or 35. VF38 Twin scroll turbo with titanium turbine and shaft. Smaller compressor housing than VF36/VF37 provides tremendous spool up capabilities but less top end than VF36/37. Garrett GT turbos offer more then just "peak HP Aug 9, 2024 · Supports up to 400hp. A. My 89 944 Turbo S hit 330 wheel hp at 18 psi with head work, larger turbo, MAF, injectors, exhaust, chips, adj fuel pressure regulator, etc. The spool capabilities of this turbo are demonstrated on the JDM Legacy GT, which reaches peak torque at Looking for turbochargers? Then, elevate your vehicle's performance with 2015-2021 Subaru WRX FA20 TD06SL2-54X Turbo Upgrade (500HP) | Boost Lab! Aug 11, 2015 · This is Subarus best selling WRX ever. Feb 3, 2003 · It's the only thing with enough size to flow enough air for that kind of hp. More like 370whp on E85. as of right now im tuned to 320whp and 340wtq on 20psi on stock turbo, injectors, and tmic. Full_Clip has a turbo-ed pickup truck. Jan 16, 2009 · 05 4eat WRX Sedan:screwy: Invidia N1 TBE, TurboXS Uppipe, Deadbolt 16G, TurboXS TMIC, DeatschWerks 650cc Injectors, Walbro 255lph Fuel Pump, GP Intake Elbow, B&M Tran Cooler, Perrin Crank Pulley, Turbosmart Tee Boost Controller, Auto Meter Boost Gauge, Auto Meter Cluster Bezel Pod. currently i have a TBE and still has stock up pipe. How to make my WRX to 400whp is one we get asked about ALL the time! So, The next-gen Subaru WRX STI will allegedly pack a version of the brand's 2. 6 liter engine. of course w/ supporting mods, this is the simple and fast answer, but will get what u want also, dynos read differnet everywhere, so i would aim at an improvement over stock, instead of a whp number Sep 27, 2020 · Hey guys! I was running stock block stock turbo, Full Bolt on, running e60 blended at the pump and was making JUST over 400hp and 390TQ. Here's the limit of the stock turbo in comparison vs the Socal V3 Turbo upgrade: In this video I just wanted to talk a bit about what mods I have done to the car to get to its current power level. and tuned version of the Impreza WRX’s 2. Everything in perspective - try owning a car that shares zero parts with ANYTHING (the S2000 comes to mind - gotta love $900 starters) else and come back and tell me this. Posssibly 4x as much in the long run. You can get 400hp with a lot of things in stock location. Curious for the people who push that range on their daily driver on stock motor, how long have they been reliable with that much power? Currently I have most parts needed to make 350, just missing turbo, injectors, headers, up pipe. Posted at 4:00 - 29th September - Tyler Mumm So you’ve just purchased a 2015 WRX recently right? This is the time where you start surfing the web. North West Impreza Club Forum -- NWIC: 9: 07-02-2003 01:20 PM: Will the STi tranny be able to handle up to 400 hp or hold better than the five speed Curious about two things: I have read and heard 350-400 hp is the most reliable on a wrx stock motor. The limited-production S209 variant cranks that up to 341 hp and 330 lb-ft, which is Nov 28, 2008 · For the turbo I would go with a Dominator 3 or ATP 30r 0r 35r. Keep in mind it's a little more complicated than buying this bad boy from GReddy and putting it on your WRX. Sep 15, 2011 · So my plan is low 400 hp, 400 tq for the 5 speed 2012 WRX. The spool capabilities of this turbo are demonstrated on the JDM Legacy GT, which reaches peak torque at Feb 23, 2020 · Subaru's legendary 2. The MX7960F Turbo is rated to 400 HP to make for an excellent bolt-on upgrade in the Subaru WRX/STI. That lasted 2 years and 30,000 miles! Well on a high speed pull I met Rod through the top of my block at about 130mph. Free Continental US Shipping Close menu. Thinner blades with a larger surface area for improved airflow and turbo spool. Most people are surpised how quick my car will get up and go that have never been in it. grab an sti, 3. Sep 8, 2017 · Modifying a Subaru has been one of the least expensive cars I've ever messed around with - parts commonality with the WRX, Impreza, etc. That is a significant jump up from the 310 HP and 290 lb-ft (393 Nm) of Sep 24, 2008 · 400hp wrx motor Built Motor Discussion. I know 400 is a common hp number amoung our cars but i see the majority scrap their wrx blocks for an sti. 10cm hotside if you want it on e85, you could go with the 1. Home; Catalog May 6, 2020 · This video features a 395HP Subaru Impreza WRX STi (GD) and a 275HP Subaru Impreza GTT (GC8)! The WRX STi’s engine has been replaced by a EJ207 with a TD0520G Turbo, Injector Dynamics 1000cc Injectors, Japspeed FM Intercooler, HKS BOV, 6spd Gearbox and a Full 3 inch Scoobyworld Afterburner Vortex Exhaust. I imagine in the past 3 quarters they have sold at least another 10,000 to 15,000. Mar 28, 2024 · But this is hardly the case with the FA24F since the turbo is mounted on the lower side of the engine, and it will be required anyways if you are trying to make big numbers. 5 xtr. Aug 11, 2015 · This is Subarus best selling WRX ever. Explore Boost Lab’s high-performance Subaru turbocharger upgrades for WRX and STi models. Jan 20, 2023 · Product Links!Instagram: @chrisvuonoObsessed Garage: https://bit. Jul 30, 2010 · I've had my 06 WRX for 6 months now and looking to make more power. 0-liter boxer turbo, known Oct 12, 2016 · Here's the new numbers with the Socal V3 Turbo and Killer B Non EWG Header (Red line is E60 plus meth injection and Blue line is 91 plus meth injection): For comparison, I've been tuning with Ron since the beginning. Feb 9, 2014 · 08 PSM WRX NF Stage 2 tune -[SOLD], 02 Honda Shadow Sabre 1100 [SOLD] 2020 Tacoma TRD Sport - 6MT [DD] Dec 10, 2009 · what type of bolt on upgrades can i do to it with having a shop tune it , can i get away with having stock internals, i have a spare motor out of a 04 wrx i can build up , but if i got a 2. 0 i have? thank you for the advice Jul 22, 2016 · Sorry for not being clear, I'm looking into buying a 400hp wrx. From 11k miles to 29k miles I was making 440whp on stock turbo full e85 before blowing it. 5-liter turbo-four until a new car is ready for some time after 2021. Dec 13, 2010 · what would be the best turbo for 380-400whp without a ton of turbo lag, sick of the stock one time for more. Dec 13, 2010 · what would be the best turbo for 380-400whp without a ton of turbo lag, sick of the stock one time for more. I also talk about some things you should May 6, 2020 · This video features a 395HP Subaru Impreza WRX STi (GD) and a 275HP Subaru Impreza GTT (GC8)!The WRX STi's engine has been replaced by a EJ207 with a TD0520G I figure there’s probably about a 20% loss through the drivetrain, so power at the crank is probably around 300 HP, maybe 340 TQ. As said in this thread^ you'll need a 2. With an intake and a turboback exhaust, you are sitting at whats considered "stage 2" levels. May 9, 2024 · Upgrade your 2004-2021 Subaru WRX STi (EJ25) or 2004-2007 Subaru WRX (EJ20) with the Boost Lab TD05H-20G Billet Turbocharger. i looking to build the most reliable 400hp wrx motor i can on a decent budget. 400-450 HP is my goal but i want to make sure i get the parts that work best together. POn the compres Oct 22, 2023 · Ig: Sep596#ets #stockturbo #tuned #fa24 #vb #wrx #hoonigan #subie #carbon Sep 10, 2021 · Powering the redesigned 2022 WRX is a new 2. also BBK. 5L WRX mid-engined Subaru Justy capable of over 400Hp to move the rather little sub-1000Kg body. Published: 24 Feb 2020, 18:33 UTC It’s still not known if the all-new WRX STI will arrive for the 2021 or 2022 400HP Subaru Impreza WRX STi #subaru #turbo Jan 27, 2015 · Are you talking 400hp to the wheels? If so, a turbo upgrade is needed. Engineered for superior street performance and high-power output, this 400HP turbo upgrade delivers the perfect blend of quick throttle response and top-end power. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Car is Full Bolt Ons on E85. S. 500hp will cost you twice as much as 400hp, and will break many more things than 400. Feb 24, 2020 · 2022 Subaru WRX STI Expected With FA24 2. E. to/2Pwg2TxCollinite 845: https://amz This 20G turbo kit includes all the necessary hardware and gaskets for installation, making it a straightforward way of increasing overall performance and getting the most out of your Subaru WRX STI. 5-liter and makes 310 hp and 290 lb-ft in standard trim. I am aware of being a bit more capable than the 2. Turbine housing A/R: 0. Mar 6, 2020 · Next WRX STI Could Get 400HP Subaru benchmarked Mercedes-AMG's mighty 415hp four-cylinder when designing its new 2. Dec 10, 2009 · what type of bolt on upgrades can i do to it with having a shop tune it , can i get away with having stock internals, i have a spare motor out of a 04 wrx i can build up , but if i got a 2. Minimum fuel pump, injectors, tbe, full intake/inlet, turbo, clutch, bigger tmic or font mount, boost controller of some kind, flex fuel if you can if not your turbo choice is going to suck, aos or catch can, shortblock and a tune. . Id go with a a Pro-tune with a GT42R with a . 5-liter Boxer four-cylinder engine found in the current U. CLEARING THE PATH TO 400 HP, YOU MUST UPGRADE YOUR FUEL SYSTEM Nov 3, 2015 · IMO you over build for your end goals to give you some peace of mind. an sti is cake to get to 3s for 0-60. 0 wrx but how does my motor size up to the sti when Sounds like you've got a great lil subi there ready for a turbo upgrade. Our selection of turbochargers offers enhanced power, reliability, and durability for both street and track use. Does anyone know if the up pipe is catless on a 2004 sti? first i will get a Cobb AP to run stage 2 but would like a better direction from there i just want the next step Jan 3, 2012 · +1 to what monkiboy said. Add some downpipes, etc. You shouldn't even be comparing a 400hp build to a 500hp build, imo. So lets just say there are 20,000 WRX(s) on the road now (there's probably more actually). Forced Performance Turbo on 25psi 2015-2019 Subaru WRX TR Gen II GTX29 Turbocharger by Tomioka Racing The next generation GTX29 turbo for the Subaru FA20DIT engine features 8% larger turbine wheel compared to previous version. I would also recomend an new clutch and fly wheel. my questions are, am i maxing my stock turbo out with the power i have now? or would it be Sep 29, 2020 · Trying to make 400 hp with your WRX? we'll get you there. Sep 16, 2012 · The turbo will fit, I've looked up the exhuast turbine dementions compared to stock wrx, thank you for the attempt at helpful critisism but I believe you misunderstod the post especially considering the turbo I was speaking of is upwords of a grand wich is anything but chdap for a single turbo, I don't want "cheap" I want to do it right for the Feb 26, 2020 · Next-generation Subaru WRX STI may put out 400 HP, report says stay the course with the 2. In addition, the turbo also features a brand new dual ceramic ball bearing design from its previous generation. In addition to his advice, I would also contact some local shops (that have a lot of suby experience under their belts) and see what they have to say, OR message some of the builders/tuners on here (IE Forman, Eminehart) and see what they have to say; as most people have experience with their own personal car, while shop Say 380-400hp is your goal, the biggest difference for the STI than the WRX is fueling. Looking in the future to start a 1990 Miata time attack car project and curious about how much power I can achieve with a turbo and heavy modification on the 1. May 20, 2007 · But in all seriousness don't go for 400 HP on a stock block, the turbo lag will make you made and your car breaking will make you even more mad :eek3: 2004 VW GLI "Back In Boost :thumbup:" KanoWRX;2076717 said: Looking for turbochargers? Then, elevate your vehicle's performance with 2015-2021 Subaru WRX FA20 BL58XR Ball Bearing Turbo Upgrade (700HP) | Boost Lab! Jun 26, 2007 · Question about 400 HP STi: aakrusen: Newbies & FAQs: 8: 07-06-2006 07:53 PM: ANother 400+ HP PumpGas STI: Junior2JZ: Proven Power Bragging: 170: 10-14-2004 04:28 PM!! 400+ Hp Sti Ver 6 !! D. if you want to do this on pump gas, a blouch dom 1. This is too generic of a question to ask. Closed deck Manly platinum pistons BC I beam rods The FA24 engine in the new 2022 WRX has some true potential, most likely outcompeting the VA WRX by a long shot, Cobb recently released pro tuning software for the VB WRX, and most tuners are making between 390-410 wheel horsepower with the stock motor and stock turbo. All from intakes, exhaust, turbo upgrade (if needed), to suspension, wheels, injectors, anything. It’s not a bad turbo. Feb 27, 2020 · By comparison, the 2. ly/2LtofVqCar Wash Stuff:Jescar Powerlock: https://amzn. Machined from aerospace grade materials. 06 HS with a meth kit and injectors 750cc-850cc with a front mount intercooler, you can get by with an upgraded top mount with 400 HP, after that then Id go with a front mount. Feb 4, 2011 · i have a 2004 sti i would like to know the first steps to get to 400hp. For EM I would use a Hydra or AEM standalone ECU. BNR2002-2007 Subaru WRX 16G turbo upgrade (250hp-400hp)BNR Turbos. The updated torque figures provide a broader curve to help Apr 3, 2007 · not 400 hp for low fours id say 400 hp would have you mid threes. It's an auto, which is less-fun, but ultimately faster with the 2nd gear starts on the strip. 5 turbo, sti pink injectors, bigger fuel pump, sti intercooler, and got it pro tuned and dyno’d at 341hp and 295 tq. For instance. I have to tune a TON of the FA20dit powered WRX for work and based on your existing mods the next upgrade for you would be a turbo. This high-performance OEM turbo upgrade delivers 400HP on pump gas, offering excellent throttle response for both daily driving and track use. Grimmspeed BB500 Turbo (Reached out directly, they said this turbo runs to 30 PSI reliable, can boost more but untested - G. Aug 16, 2009 · 400HP is a good starting point, but I wouldn't jump the gun to quick. and you'll be at 400 to the wheels. 4-liter boxer four. 0-liter boxer turbo will be phased out and replaced by a class-leading 400hp 2. 4inch Aluminum Inlet IAG Street AOS Killer B High Flow Pickup And Baffle Cobb 1050x Injectors AEM 340 Pump Cobb V3 AP (Might just let them protune open source and use it as a monitoring device) Jun 4, 2023 · Though I’d advise against the fp green. 5GT, or 2009-2013 Forester XT with the Boost Lab TD06SL2-54X Turbocharger. Went to a 5858 turbo and made 569whp up until this summer when I sold that for a socal v3 and make near 500hp on full e85 and am currently at 38k miles with zero issues all on stock motor and drivetrain. Just bolt the turbo on, add fueling and a good tune and prepare for a blast of acceleration. Oh, and it won't eat itself every year of running. I'm hoping you guys can point me in the right direction on parts. Make a wrx gt cvt the same way they do now with the dampening and all but make a manual version with the sti 6 speed. 300 AWHP = 363 CHP. I would go with TurboXS turboback exhaust, Deatschwerks 850cc injectors(or bigger if you wanna run E85), TGV deletes, APS Turbo Inlet, APS fuel rails, Aeromotive FPR, CSS FMIC, and a big MAF intake that would work with the FMIC. WRX sells better than the STi due to cost. Aug 31, 2007 · For those looking to maximize high boost pressure/high RPM performance in a 400 HP bolt-on platform, the WRX/STi TD06H-18G is for you. Price: $6,545. All accompanying oil and coolant supply components included in each kit have been designed to properly and seamlessly bridge the Garrett GT turbo to the EJ engine so that the fit is as OE as possible. This equates to an "average" drivetrain loss experienced by AWD platforms. As a general rule, I use a conversion factor of 21% going from WHP to CHP or vice versa. The STI will do this with just software and exhaust. They sold over 25,000 units last year alone between the WRX and STi. 133K subscribers in the WRX community. No word on what may power the Feb 27, 2008 · This turbo is good for 400HP and used on JDM STI from 2003 onwards. Here are the supposed changes to the FA20 Boxer engine to get Jul 22, 2020 · It is understood that the flagship WRX STI will feature a 2. market STI makes 310 HP and 290 lb-ft of torque. 201 votes, 37 comments. 86 or 1. The first entry on our list is the Extreme Turbo Systems (ETS) 2015-2021 Subaru WRX Turbo Kit. This high-performance, direct-fit turbo delivers up to 450hp on pump gas and 500hp with E85 or race fuel. Jorge at PandL in chicago can tune it even higher if you want to drive up to do install and tune. If makin 341 hp by spending only 1k on parts, 1k on tune Mar 6, 2025 · hey scooby fam, i have a 2006 wrx currently sitting on 208kw ( 280hp) im looking to get her up to about 260kw (350ish hp ) whats a good reliable turbo for this i have a few supporting mods already aswel. Public Service Announcement. /r/WRX is a place for Subaru fanatics to show off their rides, discuss modifications… Sep 28, 2009 · naw dont bring the guy down lol. Tags 6speed needhelp wrx06. Upgrade your 2008-2014 Subaru WRX, 2005-2009 Subaru Legacy 2. Built motor 1000cc injectors Fuel pump turbo - at minimum might even need to go to the RED Forced Performance Turbochargers: FP GREEN HTZ for Subaru STi/WRX May 5, 2022 · This is a 2. 57. For stock driveline and 5 speed keeping torque around 295 is very important to not blow trans. Wondering how I can make more power with this thing? Your goal is to keep it fun, reliable, and turn some heads whi Feb 25, 2015 · Agreed. Which results in 395HP Nov 2, 2006 · In the current accepted language for today, a stage 2 would be putting out about 400 HP at the crank, and around 300 or so at the wheels. Oct 16, 2015 · I have a complete stock 2016 premium WRX 6mt. R. 5GT, or 2009-2013 Subaru Forester XT with the Boost Lab TD05H-20G Turbocharger. If there are any local meets in your area and someone has a subie with a large frame turbo, ask for a ride or maybe drive so you can just get a feel for it. It can be achieved. The ETS Kit was one of the first on Jul 16, 2009 · Upgraded stock turbo to legacy 2. And I want to know what I will need or will work best all together on my car to make 400+ HP and be able to drive well. 0 i have? thank you for the advice Oct 7, 2003 · So a Stock STI with turboxs exhaust and UTEC should yield about 320 to 330 wheel hp. Alex Nishimoto Writer Courtesy Of Subaru Writer Mar 06, 2020 Sep 20, 2016 · There are so many wankers on these forums that ridicule people for wanting to up the power on there subaru, I'm in the process of getting a iag900 long block with stage 5 heads, I'm doing it once and doing it properly, I learnt to not ask anything on these forums because of the why this and why that , why so much power , why sti and not wrx so many dickheadsthat just don't get it , I Aug 1, 2022 · Subaru WRX Turbo Upgrade Kits. More people would buy it for that transmission alone. This kit also features an ETS QuickSpool Equal Length Header, a mas Feb 3, 2013 · And if this is going to be a street car with some 1320 blasts, do not be afraid of a bit of turbo lag. Start out with a built block and an STi tranny, and a Dom 1. "I want 400whp!" Are you sure? - NASIOC. BNR2008-2014 Subaru WRX 20G turbo upgrade (400hp-500hp)BNR Turbos. but why would u daily a 700whp car? ## left leg is gonna be bigger than the other due to that heavy clutch. before i go out and waste money i thought i would ask nasioc for help. I'm thinking just stick with a low tune and work my way into a rebuild while carefully maintaining motor and trans. The green is a good bit bigger than what your goals would call for. Home; Catalog Jan 9, 2025 · 400hp wrx drive train. Featuring an exclusive 11-blade billet compressor wheel and upgraded 360° thrust bearing, it ensures superior airflow, durability, and Find many great new & used options and get the best deals for Rev9 08-14 WRX GH Ej25 Turbo Top Mount Splitter Intercooler Kit Bolt on 400hp at the best online prices at eBay! Free shipping for many products! Dave Finding the limitations of his stock WRX 5 speed in a catastrophic way. Amazing for a basically stock car. Jun 20, 2018 · I personally know somebody with similar mods to that on a hatchback STI (bigger turbo though) running very similar numbers (also tuned down for reliability) and he's been running it for 22k miles. makes stuff cheap (especially OEM parts). Just a bit concerned about the reliability with the stock motor especially as a daily driver. wrx would take a turbo swap but you could do it pretty Unlock the true potential of your 2008-2014 Subaru WRX, 2005-2009 Legacy 2. But if your goal is 375-400, you can get a much smaller turbo that will be more fun. The car feels very smooth all the way through the rev range, it builds boost smoothly, and is a terrific improvement in the overall way the car runs. What's the best, easiest, most reliable way to achieve 400hp with this engine? All suggestions are appreciated. Oct 4, 2013 · ^^^That plus $500 = 400 HP/350whp. 4-Liter Turbo Boxer Engine, 400 HP. hcnd ugfonq eidohiv zofz btdp bjjgfwya pddoq ppg expyxdc ucyhmf otcfs povy kwmib yeh gbqif