How to Build a 400whp 2015+ Subaru WRX

We get asked all the time how to accomplish certain HP numbers on various platforms. How to make my WRX to 400whp is one we get asked about ALL the time! So, in this video we brought on Leo aka Fuel Pump Daddy to explain all the parts you'll need to make some good power in your 2015+ Subaru WRX.
Shop for 2015+ WRX parts on our site by clicking the link below!
bit.ly/32y6az1
Subscribe to our KZbin channel: / @maperformance
Follow us on Instagram: / maperformance
Facebook: / modernautomotiveperfor...
TikTok: vm.tiktok.com/ZMJMVPSCx/

[@maperformance]

Have you started modifying your 15+ WRX?? How much power are you making?? Let us know down below!

[@deej628]

Stage 2 with your guys’ j pipe and intake. Going to get the charge pipe and tmic from you guys soon. Then tgv/egr deletes

[@_wrx_WHPFaDIT]

500+

[@FunTimeWithSouls]

I'm running your Stage 2 (J Pipe an Intake), love how much different it feels! I did however pick up a ETS air box to use with your intake an man it brings my intake temps down to almost ambient temperature while driving.

[@PlasmaNugget]

Grimmspeed downpipe, chargepipe, intake, tmic, ebcs. Egr & tgv deletes. Magnaflow catback & boomba bpv. E-Tuned by PhatBotti. Idk how much power I'm making. Still wish it was faster lol

[@loso_snrs2667]

Wtf is a stage 1 or 2?? Idk why subaru owners always say stages. Just name your mods its that simple.

[@kyleheitzenrater8920]

"on a stock block... great news for ya, probably not gonna happen" Favorite line ever

[@abbas674]

Yes my 2004 wrx 2.0 made 387 stock block stock heads big turbo and FBO on e85 and It drove super hard for about 4 years and just recently the driver side head started to rattle so yes its possible its all stock made almost 400hp abused it everyday I drove it. Doing an IAG block now.

[@dyingbreed5386]

@@abbas674 You got lucky. Popped a 2.0L @ 340hp, a 2.5L hybrid @ 380hp, and a non AVCS 2.5L on e85 with forged internals @500hp. I will admit i got almost 85k out of the 2.0 though. The most exciting was the final one. Best we can figure is we got case flex, which caused the forged rod to snap and go through the block, splash oil all over the turbo and catch fire. It would have been a real disaster if i wasn't on my way to a BBQ and had a cooler full of ice and beer in the trunk I used to put the fire out, haha. After pulling the top mount I could reach down and grab the crank.

[@abbas674]

@@dyingbreed5386 yeah dude I was using amsoil I believe that helped keep it alive

[@kyte1x215]

Good thing I have a sleeved short block

[@ethansteele5246]

So basically he’s saying “ your not that guy pal”

[@turbotj99]

Episode 2 - how to rebuild the engine of your 2015+ WRX

[@remissiveslave]

Exactly

[@remissiveslave]

@Josh Yates I think he was suggesting after mods. Not stock, but who knows. Tuning these cars has a tiny margin of error, just a slightly bad tune will demolish your motor. No one with these KZbin videos gives you the plain and simple reality of nodding these. If spend 2000+ in performance and get 20k miles then i blows or something, the wtf is the point.

[@maperformance]

Too funny 😂

[@mikael4126]

@@remissiveslave 24 psi isn't stock lol. He meant the motor was stock, as in no forged internals.

[@30H13]

@@remissiveslave seems like youre talking about an ej? nah?

[@HoeLeeFuQQ]

“Can’t tell you how long it will last” walks out the room

[@-slurmdaddy-8147]

To those who looking to make more power on stock block. Don’t bother with turbo upgrade. It’s pointless as you will already nearly have block maxed to its limits on e60. You wouldn’t be able to maximize the boost on the larger turbo until you have beefier setup. Not saying you can’t but if your pockets are deep enough, go big! Adding FP blue to my cart right neow. 💥🔥

[@HJ-sn5gt]

You guys are great. I like the service and advice. Thanks.

[@TurbhoeHDRemix]

Honestly, I'd be satisfied with 300-350 whp in a base 2015-2021 wrx

[@ucnhtmenow1]

You're satisfied with slow? I guess people are just different.

[@SojhiDraws]

@@ucnhtmenow1 lol facts!

[@30H13]

@@ucnhtmenow1 ey man its almost as if cars have qualities other than speed in a straight line and can be enjoyed depending on the person's goals.

[@brendanfogel4573]

for a daily yes for a race car no.

[@BronzFilms]

Anybody hating forgets that this isn't a race car. Its a 4cyl compact. Until you dump boat loads of money in it'll never be a race car

[@matd8958]

We need same video for 15+ sti. Love what you guys are doing. Were i live your parts are expensive to ship .

[@paulmarsdensr8199]

Great video Sir. Very attention to detail oriented and your products are awesome. Stay safe brother.

[@maperformance]

Much appreciated, thanks for watching!

[@transmissionsrus6808]

Been running 412 HP and 356 Ft Lb torque for 19,000 miles and I have had 0 issues. Tuned by Phatbotti :)

[@shaggymoge]

Mods?

[@DanielMartinez-vw6bs]

With stock turbo?

[@transmissionsrus6808]

@@DanielMartinez-vw6bs FP blue Turbo but on stock boost, we didn't want to risk anything until I drop my block in.

[@romanlozano6854]

E 50? What other mods?

[@transmissionsrus6808]

@@romanlozano6854 e85, the nostrum fuel pump doesn't require mixing 93/e85, but the power gains you see from e60 to e85 isn't nothing to brag about and at my local gas station we get e77 content year round anyways. The mods I listed will take your car to 400HP very easy, just get a good tuner so you don't meet uncle Rodney because they give you some crazy torque curve. Edit : Unless your an enthusiast like myself, $13,000+ to get 400hp is a little out of this park, I myself have been considering selling my WRX and moving to the Supra, easy 500hp for around 5k.

[@Davethehorse321]

Perfect video!!

[@maperformance]

Glad you think so! Thanks for watching!

[@MrJackal43]

Ima Stage 1+ Cobb and am banking up for a stage 2+ upgrade. Noticed a huge marked difference immediately after the 1+ upgrade and can’t wait... the power is addicting. 340HP is a great number for this ultralight chassis, a real contender on the streets fo’ shizzle. I also plan on doing a KIllerBee Preformance oiling system to compensate for the systemically flawed Subaru designed pan which is what results in most of the Boxers catastrophic failures.

[@MadeinOregon503]

Ummm, sure?

[@igotthejuice2090]

@@MadeinOregon503340hp with stage 1+ 😂😂😂

[@Nick22257]

Thanks for being honest about the stock block capabilities! Good to know if i were to buy another Subaru, it would also need a built block just like the first. 🥲

[@maperformance]

Glad to help!

[@GoldenNada]

Honestly I can't even call it a block it's like a 2 piece clamshell...🤷🏿‍♂️

[@ucnhtmenow1]

I don't see why people that want to go fast don't just build the motor anyway. Then again, maybe not everyone has $5k to build an engine.

[@Nick22257]

@@ucnhtmenow1 because naturally everyone is going to have a different use case and goals as well as budget, so its not always necessary. Ive had an iag 2+ hawkeye that only made 415ish at the wheels, and theres at least a few stock block stis that push more power than that. Some motor platforms dont require a build for twice that amount of power

[@tylerhansen1161]

I got 400 in my 09 wrx stock block with 213,000 still going strong

[@tylerhansen1161]

15-22 psi depending on the time of year

[@youngproductions1401]

besides getting my car professionally tuned I did all of this but I did do a front mount intercooler and dropped a brand new sti tranny swap just to be safe(;

[@MrDboy1979]

Great video

[@flpmedia2312]

My 2019 came with a accessport and cold intake I sold the cold intake because the dealer I brought it from said they had trouble passing smog its pushing 270hp+ that's kool with me didn't want to void the warranty still smoking tail gaters

[@luvhcchris]

Will you guys ever make an intake box for the MAP intake?

[@likegemael]

i started modifying my 15+ WRX, intake and douwpipe + barenwald (made in Brasil) exaust sistem. But is very dificult the parts are to expansive here in Brasil.

[@judeau9151]

I have a 19 WRX and have started my build.. but with no intentions of pushing it over 320hp. One of the reasons I got a Subaru is for utility and dependability. I’ll save the big gains for a future track/weekend car

[@flpmedia2312]

That's kool I'm pretty Impressed with mine the turbo comes on really smooth only thing I want to upgrade are my brakes WRX are so sick I wish my girl understood what turning flat means lol

[@judeau9151]

@@flpmedia2312 they don’t realize feeling G’s is a good thing smh. Everyone wants an SUV. Learning to drive smooth isn’t a bad thing tho. But I’m still too scared to practice launches

[@Kaz8693]

Literally just an E30 tune got me to 328hp

[@errorerror3771]

Would you recommend me doing stage 2 e85 with 400hp with built rods and pistons on by 2015 wrx?

[@brother_maleik]

New type Ra block can hold a lot more than previous STI motor. You guys should update this video!

[@IceBoxAlex]

You can make 400whp stock block and keep the engine from blowing. Just E85 and FBO. The E85 will basically be solely responsible for keeping the engine together lol but it'll get the job done for 400 wheel.

[@SuperEman500]

What’s FBO mean?

[@IceBoxAlex]

@@SuperEman500 full bolt on

[@19Herofade92]

Just pro tuned my 2018 WRX pushing 275WHP and 290WTQ with only Mishimoto Cold air intake and Mishimoto Bigger TMIC and a no name muffler delete. On a mustang dyno! Yes the heartbreak dyno. These Fa20DIT engines are very sensitive to mods if you get pro tuned. OTS tunes are a temporary fix. Remember, no two engines are the same!

[@kussamanga]

I have the Cobb exhaust and an AOS as well. Would that make any difference if I were to get the access port and MA intake and get it tuned or do I need to have the j pipe and everything

[@devonbush7721]

The stock FA20 block can handle between 500 and 700hp with forged internals

[@wingedsoldier3]

So you can run e30 on stock injectors and fuel pump? And that’ll make more power if you have all the supporting mods you listed? Bc I have all of those mods and a 93 octane pro tune and I’m not making 350whp

[@Xehemoth]

Cool video guys. What does this mean for my 93 civic tho?

[@brandonedwards9812]

Trade up for a new Type R.

[@dre160]

Why am I watching this? I own an si.

[@ryanelsie6933]

Si Will be the next to be featured here. Please make it happen

[@Gchang54]

Dont worry, I own a aventador and still watch subie vids

[@BP-fx3qc]

@@Gchang54 yea sure and i own a billion dollar company in silicon valley, foh.

[@Gchang54]

@@BP-fx3qc I guess it's hard for some to decipher sarcasm

[@kx250fforlife]

Because you don't want to be gay anymore?

[@Mr2fast909]

I had aye 2019 wrx I made 400hp and 390tq on a custom e60 blend fbo plus fmic and upgraded pumps she was fast but sold it

[@MsIpodqwerty]

question, hoping to hear back: i already have a K&N intake & just bought from you the Boomba BPV, if i get the jpipe and cat back from you will i still be able to get the stage 2 e30 tune? thanks

[@maperformance]

Hey Kevin, unfortunately without it being our parts 100%, the tune wouldn't work as designed. Could always replace the other parts to work if you wanted though! ;)

[@Ivan-ds5io]

Would I have to go to your shop to get the stage 2 tune? I got the accessport but live in GA

[@carrazer001]

E60 will Make you 400hp no turbo upgrade, AOS separator, tgv, egr deletes, new pump by AEM , ETs fmic, boost control solenoid, Cobb CAÍ, Cobb down pipe, and a tune from Ron Watson, don’t forget the Cobb flex fuel kit

[@IanReoch]

Red 2020 WRX. I did all these mods (except fmic which tuner reccomends) and got 365 whp on a conservative tune. It's like a new car and yes, it should come this way from the factory. Gary Baines tuning.

[@DarkShak]

Car still running fine?

[@harveyf1479]

What about TGV and EGR delete?

[@mcwendel8066]

Does this apply to a 2020 STI? What kind of power would you see with these same mods? Been out of the Subaru game since i traded my 08 STI in 2013. Now I’m contemplating getting an STI or a Golf R

[@intoTheEther1]

Entirely different motor. Doesn't respond as well to ethanol due to lower compression than the WRX's FA. But the EJ is better for big power.

[@Shinigami-ko6bq]

Probably needed the big turbo bc his intake is inhaling hot air constantly bc your intake’s are not to good just letting y’all know you need some type of heat box to obtain lower temps❤

[@tonyperez8594]

25K miles on a 505 AWHP/525 AWTQ daily driven build. Only problem i had was the turbo needed to be rebuilt.

[@mikefreire5627]

i have a 54x boostlab turbocharger, cobb top mount, iag (aos), perrin downpipe, r400 catback, cobb boost controller, tdmi turbo inlet, act stage 2 clutch with a light weight flywheel,, cobb accesport, cobb intake, and some ngk spark plug, all installed on my 2015 wrx ready for a protune any predictions on hp?

[@DarkShak]

330on 91pump gas

[@scottadkins918]

Any updates for the auto wrx's?

[@sonicplayroompiano4302]

what do you mean how long its gonna last? do they lose power over time after all the mods and tune?

[@fredastaire6156]

Hey Ya’ll!! Do you offer any cool upgrades for a 2004 STi? Or is this all for the 2015 model and up?

[@SuperEman500]

Where would you take your WRX to to get all this installed, just your local performance shop or do you guys have locations to bring the car in throughout the U.S.?

[@maperformance]

We don't do any installations on customer cars. I would recommend asking a local subaru FB group and see where they take their cars for this kind of work!

[@salvadortejeda901]

How about for a 2011 Subaru WRX

[@Hc-rt6pe]

What about a 1999 sf5 with a sti engine swapped in

[@dynodyno6970]

What kind of hp are we looking at without the ethanol blend?

[@davidruiz6163]

At what point should I start worrying about the transmission? Cuz those things snap like toothpicks

[@anthonymaira1505]

Do more videos on the subaru STI GD chassis

[@ArnoldC]

How about for 08-14 WRX?

[@meatpopsicle4801]

I have MAP tmic, charge pipe, cobb accessport, cobb ebc, MAP intake catted j pipe and muffler delets. 298/300 not tuned for e85 yet. 93 octane tuned.

[@maperformance]

Interesting... I definitely feel it should be more than that haha. A good E40 tune would get you an extra 30-50hp but you should be pushing pretty close to 400 at that point.

[@meatpopsicle4801]

@@maperformance Really?! That's extremely disappointing. So you think my tuner is leaving too much on the table?

[@User2djdb]

I want that stage 2 kit!!

[@maperformance]

It's available for purchase here! www.maperformance.com/products/map-stage-2-package-2015-subaru-wrx-wrx-4g-s2?variant=30182471041094

[@jacob5412]

How did you wire those headlight to have the DRLs on like that, my DRLs have the low beams on aswel

[@intoTheEther1]

You can disconnect the harness for the DRL's. Jist watch a c-light harness video for details on how to do it. It will only work once you wire up your C-lights though.

[@somersfamily]

I have over 144whp in my 2017 wrx with my tune from ma. Pretty fast. As long as I don't blow the motor and hit 220whp I'm ok. Gotta keep that torque down ya know

[@christopherrogers8316]

144? lol

[@germanespinosa1947]

@@christopherrogers8316 :/ fr how did he manage to remove so much horsepower like damn.

[@snakeboy2644]

how do you only have 144? the car comes stock with 268

[@ClydeBickford]

Huge piece of advice required. Is it worthwhile trying to fixed my OPPOSED/INVERTED right side Tumble Generator Valve (0.8V vs 3.1V) causing substantial performance and fuel economy issues, or just go to a pro Subaru tuner to have them deleted and car retuned? From South Africa, so precious little support from Subaru here :(

[@deefwxp5378]

Whats diffference between flash and real time in the tuning options. I have a cvt and chose like stage 2 big sf 93 or somethin

[@jimmylin6566]

For the fueling part, what did you mean by pump gas and ethanol? For E30 tune, after pumping 93 gas, I need to add ethanol?

[@maperformance]

Yes, E30 would be 30% of the gas mixture to be made up of ethanol.

[@whatiwant8898]

Quick answer: FBO, Flex, AOS, EWG headers, in tank fuel pump, and a REALLY good tuner. Just don't expect the engine to last for 10s of thousands of miles.

[@youknowsanchez]

No cap, mine is at 118k with all of that, stock block, 2nd clutch, been at 400hp+ since 22k.

[@sixstrz8310]

Yup the true reliable boxer for Subaru’s

[@rawrbrz]

@@youknowsanchez it’s always a roll of the dice. you’ve been lucky id say

[@Slouchyy_]

I’m assuming this video can’t b used for a 20’ sti?

[@victorsalazar2532]

What about a 2014⬇️ WRX cuz not everyone has 2015⬆️ can I use the same recipe or is it different

[@kylehansen4224]

I have a question, I don’t have e85 no where near me in northern Utah but I found a sunco race gas called e85 99r is that the same thing?

[@MichaelBrown-is2on]

look into snowperformance meth injection kit. Was good for 60 whp on my last wrx. No E85 for me either

[@antoniosolis7237]

What about a 09 hatchback? Carry accessport

[@justinb3610]

395whp/350tq on E66 I've had no problems runs like a dream. Remember to use ethanol stabilizer on your stock cars!

[@alexpeguero38]

Nice numbers, mods?

[@justinb3610]

Full bolt ons with flex fuel on stock block. Tuned by Clark Turner over here in az

[@alexpeguero38]

I’m same, 360whp on flex, 290 on 93 pump

[@justinb3610]

Wish we had 93 over here. Thankful for E

[@mitchschwarz]

What stabilizer you using?

[@SkateorDie2788]

I make 410 whp with a 06 Hawkeye and it was expensive to do so safely

[@615smittyjs]

these fa make power cheap up to around 400ish, let then 3500 with tune will get you that and with a good tuner will be reliable too.

[@mooseknuckle8334]

What.....

[@mikeyrov5230]

I’m so tempted :0

[@maperformance]

Do it!! We'll help you out and answer any questions!

[@miwuksniper]

I just got my STI yesterday. I’m new but I’ve deleted my Cummins so I’m trying to figure out what to do with my STI now. Any help would be appreciated

[@maperformance]

Give us a shout! [e-mail]

[@patrickweser5553]

Should probably just start with AOS before anything. Knock knock

[@lucasboytim7104]

AOS?

[@lucasboytim7104]

Nvm lol

[@donevanlizama8648]

Where are you guys located?

[@Dave-so7sf]

I’ve seen an FA20 unopened engine with Full Bolt Ons, FP Blue, and E85 make 460whp for 20k miles and it is still going. He occasionally takes pictures of his boost gauge for me and it spikes 29psi 😂. How this thing is in one piece I have no clue.

[@Dave-so7sf]

Update: It finally broke a rod and blew a hole through the block 😢.

[@EazyTheRecon]

This made me laugh

[@AndrewB23]

@@Dave-so7sf this is why idiots shouldn't own cars, he abused it trying to flex

[@Dave-so7sf]

@@AndrewB23 Nah he knew it was going to blow up. Your only an idiot if you modify a car and don’t have the money for a new motor. He’s replacing that motor with a fully built one.

[@katastrofe6388]

The car is loyal to you it's the love we put into things and the bond we make also good quality parts help

[@babyzylowh3946]

Is this intake good with 2021

[@jasonlundbeck4701]

What headlights are those on the Grey WRX in the intro?

[@maperformance]

Ebay baby!

[@peeonu25]

No mods. '17 with 57000. Valve through #4 piston. GG.

[@Flatbushfonz]

Next video how to rebuild your fa wrx15+

[@henryantonio7549]

What about making a 2020 STI 400WHP. Any content?

[@maperformance]

Check out this video! kzbin.info/www/bejne/qHnZZqmDa52laNU

[@bibulch1]

Do you ship international

[@SelenePR17]

so on stock block you can do bolt ons but dont do nothing too crazy, if you want anything above 350-400+ then you need to get a built motor and THEN go forward yes?

[@maperformance]

Yes!

[@moschoi]

No. Depends on what year and what model (WRX or STI). 2019+ STI stock block can handle 500whp just fine. Ask me how I know.

[@bryanortiz240]

Do u guy have stage 2 ots tune

[@Bievahh]

Wish these cars could make more power on stock block.

[@Jabbazuki]

Is this reliable with stock internals on a 2021 Subaru WRX STi? Thank you in advance!

[@maperformance]

350-hp is a very reliable setup, but beyond that, you are taking some risks. Send us an email at [e-mail] and we can discuss your goals for power and what mods are necessary to achieve that!

[@FadiAljada]

My advise, change the block before anything i installed everything on my 2016 stock block 344 hp and now i have rod knock

[@aestheticgarage2403]

You’re just unlucky lol

[@AndrewB23]

You made only 40 extra hp and got rod knock, your tuner is trash

[@iCutWaffles]

@@AndrewB23 the car has 265 crank hp and hes at 344 whp.. Do you even maths?

[@somersfamily]

@@AndrewB23 40 extra ? You mean like a 125whp extra if not more ?

[@somersfamily]

Damn how high was your torque? I know alot of pimple that have ran that for years and no issues but a clutch

[@MorganBrown]

So no need to upgrade rods and pistons at 400 hp?

[@bradgreen987]

Never put an upgrade turbo on a stock FA20 stock. My tuner says instant grenade

[@slya28]

Any videos on 15” plus Wrx cvt max horsepower?

[@MeltingRubberZ28]

Less than stock ha

[@legoguy5944]

Had a cvt before buying the sti. If you seriously want more power but for a daily driver you can look into what I did. 1. Accessory 2.turboback 3.bpv boomba 4.intake 5.trans cooler. 6.tgv egr delete Ran this for 15k no problem and was a fun daily

[@legoguy5944]

Anything higher then that is pretty darn risky on the transmission. Modding can be done on a cvt wrx but first id ask yourself why and then look into how safely. Wouldnt recommend unless you have money on the side to replace the cvt incase it goes out

[@nathanyang8060]

Do you guys offer customer dyno tuning yet?

[@maperformance]

We do not. Sorry!

[@dwightphillips2091]

Is it possible to get 50 hp without access to e30?

[@TrichbeeT]

Dats a nice evo on the side...

[@maperformance]

Hopefully you follow our build!

[@lucascbfc2361]

Would a tomei TI exhaust be good for an sti

[@maperformance]

It's a great option if you're looking to save some weight and like the single exit design, though it is on the louder side compared to some of the other options on the market. Watch our Top 5 STI exhaust video for more information!

[@lifeisgood070]

How many blown motors have you seen at 400whp? And what is the rate you hear about them? 2 per year? 1 per month?

[@fredastaire6156]

Underrated question! I’d like to revive this and get an answer as well plz!

[@Kaz8693]

Hardly any at 400hp and I daily mine tuned with Phatbotti. At 500hp my friend recently blew his tuned with someone local tho.

[@DarkShak]

I wish he was back in commission so I can get tuned by him

[@IWreakHavoc]

Website adverts up to 320hp but you guys say 350hp in the vid?

[@ordeyous7126]

does anyone know if the cobb acces port comes with the kit or not?

[@maperformance]

There is an option to add the Cobb accessport when adding one of our power kits to cart!

[@chasestoddard6984]

On a stock block fa20 u can throw 450whp no rods or anything, I’m at 850whp rn in my fa20 waiting for it to break

[@nailuj1993]

Listen. FA20. 320-350 hp max with 300-320 tq. Still risky but that’s about as far as I’d stretch it without supporting internals. I have a 2018 WRX. She’s my baby but I ain’t trying to blow her up. 😂 I love these guys tho. Great products and their exhaust sounds 👌 noiceee (please note this is my opinion, nothing more)

[@miggy2225]

We need the same video for 15+ STI !

[@gerardoamaya9323]

Well my friend... it’s pretty much the same thing in case you didn’t know. Sti is not a car model is a “Trim Level”

[@PRgencoupe]

🤣🤣🤣

[@Braapd]

gerardo hernandez Different engines. Look em’ up. Wrx’s FA engine has different set-backs and major requirements in terms of modding than the STi EJ engine *ahem* wrx’s transmission *ahem* STi’s Piston problem . Not to mention the obvious initial difference in hp and what that entails for mods and supporting mods from the jump.

[@SUCKmyFIREbawl]

@@gerardoamaya9323 lolllllllllllllllllllllll yeah exactly man, cool

[@BP-fx3qc]

Just change your fuel system and do a protune on the sti.

[@pl-boostcreep]

Never had an issue with a Subaru that didn’t have a Cobb access port touch it …

[@BMWSUPERCOOL]

I can't get e85 where I live :(

[@calvin3448]

Shame. I live half a block from an e85 pump 😂😂😂😂

[@chouvue5030]

When do I have to tune it? What would you recommend me have before tuning?

[@maperformance]

Header, Downpipe, Intake would be a good start before a tune!

[@chouvue5030]

I have a mishimoto intake and a tomei exhaust..

[@civic_lover_ek9797]

Soo i might be dumb but he said its a pump gas and ethanol blend..... where would I get that?

[@maperformance]

You can use a fuel mix calculator and pump both ethanol and pump gas into your car!

[@allenrowdy810]

That’s cute but I want to make 400 on my STi. Make a video

[@Delvron1]

So if I dont have a ethanol gas station near me i cant do anything?

[@maperformance]

You can definitely get some solid numbers out of premium fuel only, just not the max gains you would see with ethanol!

[@4bvenom733]

Did you spend 50k like the other wrx did

[@stfv_6721]

just need the charge pipe, and FMIC and i’ll be making 450 WHO