Mods To Get 400HP In Your 15-21 WRX (+ Tips & goals)

[@camiloguzman2441]

Stock intake CAN be good up to 400hp with supporting mods. Doesn’t mean it will help get you there. Intake definitely helped your setup.

[@4corners312]

I have 19wrx an running oem intake, mishimoto cattles downpipe, muffler delete, iag aos, an with accessport being protune. Being 290 hp/ 231 tq I have to stay OEM intake cause I live off road... Going for MORE 😎

[@W333dm4n]

Stock intake filters better

[@Haze121201]

I have the same catted pipe and love it. Almost the same mods. K&N cai, charge pipe, turbo inlet ebcs and flex fuel pushing 355hp. Love it. And added the race version mishimoto tmic.

[@samuelg3586]

I'm running similar FBO mods and phatbotti e tune on 91 octane in Kalifornistan. I can't imagine what the E60 tune feels like. Wish we had 93 octane too. That being said, I love how hard my car pulls right now after his tune, I am definitely satisfied even on the 91 octane.

[@revengefullobster4524]

Pretty good advice. If you want 500 hp seriously think about getting AT LEAST forged internals. Mine is completely built, and puts 470whp which is a bit over 540 hp crank. (Figuring 15% drivetrain loss, which is probably low for awd)

[@StreetInspired1]

Definitely would like to. I'll have to see how the year goes!

[@revengefullobster4524]

@@StreetInspired1 without a doubt! Hope to see some good stuff this year sir!

[@Haze121201]

very interested as to what all did you replace in your engine and did you replaced the turbo?

[@revengefullobster4524]

@@Haze121201 if that was for me, I have a closed deck block, forged internals, ETS fmic, an FP red turbo (stock location), Cobb e85 flex fuel kit, and all the supporting stuff (injectors, cooling, larger oil cooler, etc) that goes along with it. Also Invidia dp with Nameless catback, ACT clutch and flywheel. It's tuned for 31 psi on E85 and 25 on 93 octane, which is pretty safe.

[@evoeyerex3518]

That jump from 93 to e60 is fucking wild lol why I love wrx .

[@SaiyanEuc]

Just ordered my ewg header 😂 I'm super excited. Can't wait to see more progress from you

[@StreetInspired1]

I'm jealous! I really want one but they're so expensive it will probably be summer till I get one And thank you!

[@SaiyanEuc]

@@StreetInspired1 I've been wanting them for about two years and I finally just said f it. Went all last winter afriad to go wot for fear of overboosting, I cheaped out going catless and now I'm paying for it haha

[@tylerjameshunter]

How is going catless bad?

[@StreetInspired1]

@@tylerjameshunter I wouldn't say going catless is bad. Catless without EWGs though can cause bad overboosting issues. A lot of tuners won't tune catless cars without EWG because of this issue. However My last wrx had a catless downpipe and stock catback and was tuned and never had overboosting issues so its not a guaranteed problem but is common.

[@SilverFoo79]

New sub. Liked your mild mannerism. Not over selling or overly geeking out. I like that. Just honest and to the point. I picked up a brand new wrx last week (2021) and I’m interested in modding it. Suggestions?

[@StreetInspired1]

Buying new do a break on period make sure you don't hold a constant rpm for to long, try to keep the rpms moving (ex. No cruise control) or switch gears from time to time if highway driving. After 1k miles change your oil and filter with a full synthetic and you should be good to go. After 1k I started modding and never looked back, the stock tune is fun at low rpm and low speeds but it's awful mid and high range. So I would recommend getting an Accesport and stockpiling a few parts for a protune. Stay away from the ots maps if possible

[@StreetInspired1]

Here's a video I did that might help you. Of course most of this is based on opinions of myself and advice from my tuner this should put you in the right direction kzbin.info/www/bejne/jpC4g4eDq5V6l6c

[@anthonytreetrunk]

Nice haven't seen anyone else with the 1320 downpipe as well. I think I'll go charge pipe , top mount intercooler, then flex fuel next, then etune from ron. Currently have the downpipe , intake, and clutch upgrade.

[@shakultra]

I think I should get a tune by Phatbotti because I just got a tune on my 21wrx making 302 whp with cobb big sf intake, IAG AOS, cobb bypass valve, cobb ecbs, grimmspeed turbo inlet, grimmspeed fmic, ets gesi jpipe and borla s catback.

[@StreetInspired1]

Phatbotti was the one who tuned this car lol

[@shakultra]

@@StreetInspired1 lol no I meant since you got good results with your car being tuned by phattbotti, I need to get mine tuned by him as well so I can get more power

[@StreetInspired1]

@@shakultra my mistake I read your comment wrong! I definitely recommend him for sure. Easy guy to work with and he is super quick!

[@shakultra]

@@StreetInspired1 It's all good dude! Thanks for making these videos!!!

[@denverpurgepaintball7147]

since u got the e85 kit did you do fuel rails? if so where are they, i just bought a 2020 wrx and it has a shit ton of mods...cobb intercooler, cobb intake, cobb turbo back exhaust, cobb e85 sensor kit, cobb boost controller and thats all ive found so far...id assume its still tuned because of not throwing any codes or lights...didnt come with an accessport so ill be buying one of those and possibly a clutch kit no issues at all so far.

[@StreetInspired1]

Damn dude I don't understand how people sell cars like that with all those mods and not include the Accesport and custom tune. It's messed up. But that's weird if it wasn't tuned it probably wouldn't even run. Idk why thr guy took thr AP because he can't really sell one that's still married to thr car. But I didn't get fuel rails. I would have to get port injection for that.

[@denverpurgepaintball7147]

ya man this car is a trip now it just stalls randomly and i have no clue why, even the subaru dealers service dept. doesnt know either its actually been a nightmare but theres no check engine light or anything so hopefully its something really minor kuz i do love this car but damn man. theres at least 10k in mods to this thing and it was never told to me so im hoping the between cobb and the techs they can figure it out.

[@Ghackinn]

I have a 2020 wrx. Not sure if I wanna do aos or cans because I live in Canada and get crazy cold temps and have read stuff about lines freezing. Also I think I saw that the WRX trans starts to become unreliable after 300 whp

[@brendanfogel4573]

Yeah that’s the most it can handle. You gotta get the Sti trans swap.

[@HotBoiRicer]

Fully stock exhaust, stock intercooler, and factory ecbs making 292whp 317wtq 😉 2018 WRX Premium

[@honeyrattan6486]

You’ve a jpipe with stock catback?? How’s that working out for performance and sound?

[@StreetInspired1]

Catback makes almost no difference at this power level

[@m3rkm1ll3r6]

Hey guys so i just started doing mods to my 2016wrx premium i have an access port, cobb intake and a boomba bpv! I want to keep doing performance parts but i want everything to stay reliable what are thise deletes to help with carbon build up? Goal is 450 whp as my daily! Any help will be greatly appreciated!

[@K03sport]

I just want a 10-15% bump in hp/tq. It's a street car and I'd rather focus on handling and driving dynamics/manners. If I can't add power, I'll look at removing weight (w/o going to extreme). But any route is a losing proposition no matter how you look at it.

[@rjp2830]

21 WRX Grimmspeed V2 gesi jpipe, stealth box intake, ebcs, invidia r400 cat back protuned 91 octane 292whp/326wtq

[@GIXXRBRAH750]

You can gain more with a fmic TMIC can also have a lot heat soak

[@khmer4life]

Bro awesome content. Very knowledgeable. Great info about all the list of mods. I’ve been following you since your 2015 VA. Glad you’re back with another. Good luck with your goal of 500hp!!! Excited to see how well the motor would hold.

[@StreetInspired1]

Thanks for your support!!

[@errorerror3771]

How much did the setup cost?

[@dre2kule]

I find it interesting that you only had 275whp with your setup ...I have pretty much the same WITHOUT an aftermarket downpipe and BREN got me to 311whp... I'm going to go ethanol soon, and you get my hopes up that you got essentially a 100whp increase on E60! That's crazy

[@buyadriver]

Yeah I don't understand his numbers on pump gas. They should be around 290 and 350ish for flex. I have a similar set up but I have a cobb turbo back exhaust and I do not have an intercooler. My numbers 290 pump and 340 flex. I got the standard 50hp increase. How's his so much higher?

[@malvodasnipa]

I got 310 to the wheels with a Cobb intake, and nameless downpipe with a protune.

[@edwardsjavi4702]

You can make all that power with the stock cat back?

[@StreetInspired1]

Yeah I was tuned on the stock catback. The stock catback really isn't that restrictive just the downpipe.

[@edwardsjavi4702]

@@StreetInspired1 thank you 🙏🏽 you just saved me some $$$

[@StreetInspired1]

@@edwardsjavi4702 no problem!!! Here's a link to a video I made to showcase the sound of the stock catback with catted 1320performance downpipe if you're interested to hear what it will sound like kzbin.info/www/bejne/pV6bYqWCoKaSjtE

[@subiesaucin]

How reliable would you say this setup is? Do you daily it?

[@StreetInspired1]

I daily this setup. I know people with similar setups for 50-60k miles with no issues. I'm on 5k miles with this setup not a single hiccup yet.

[@4niktr]

Have had the boomba bpv on mine since 2018 and no problems with it

[@StreetInspired1]

Same. My Boomba is 2 years old and seen atleast 30k miles of higher than stock boost with no issues. But there have been a few people who had issues with them leaking. I'm sure boomba would replace them though.

[@trigun989]

Might detonate? Just a matter of when lol Got very similar mods, just waiting on a tune wih AMBOTT

[@guapthedon1944]

Making 330hp 370torque with my stock intercooler. 2021 WRX

[@nabaddame5726]

Is the catted down pipe required or suggested? Trying to figure out the least expensive way to get close to your hp number! I kinda like how quiet the car is from factory just want some more power without doing bolt on mods. Flex fuel seems like the way to go.

[@StreetInspired1]

Accesport, flex kit and fuel pump will give an otherwise stock wrx about +100whp. So definitely if it's available in your area it's 100% the most effective mod. But on your downpipe question, my tuner won't even tune people with catless anymore because of overboosting issues but a lot of tuners say these cars don't overboost with catless. On my 2015 wrx I was tuned by the same person and he tuned me catless at the time and said he was suprised that I wasn't overboosting, but like I said there's probably 3-5 other tuners I know of that say these cars don't overboost on catless so I'm not 100% sure.

[@nabaddame5726]

@@StreetInspired1 I would be more than happy with 100 whp over stock for around $1000 if buying some used parts on the forum. Definitely would get the fuel pump new but my car has around 14k miles so definitely sounds like 100whp more than stock would help stretch the life of the stock clutch a little more. The EGR delete and the tgv deletes are cheap so I'd probably throw those in. I have e85 available here in Florida but the confusing part for me is if I don't have access to it while road tripping if I have to load another map to run 91 or 93 or if the Cobb flex fuel kit will automatically adjust to compensate that it's not flex fuel? My paranoia is forgetting to switch maps and detonate my motor 😂

[@StreetInspired1]

@@nabaddame5726 For sure! If you E-tune, usually once a tuner sends you a base map you can drive safely on it as long as you aren't getting into boost and with the flex turns the tuner will fully tune the car on 91-93 first and then ask you to put e85 in it to get it to e60-65 and repeat the process. After that you can run anything and the flex sensor will automatically alter the map to your ethanol content. But if you run out of fuel mid tuning process and refill as long as you keep the Ethan content within 3-5% of what you were at on the last log you should be fine!

[@nabaddame5726]

@@StreetInspired1 that clears it up. Thanks so much for the responses I really appreciate it. I've watched all your videos! Very cool content especially those tail lights.

[@StreetInspired1]

@@nabaddame5726 No problem! Thank you for your support!

[@SteveC-Aus]

Looking forward to seeing your progress! What made you go from a 15 WRX to a 20 WRX given they are basically the same thing? Why not STI? Any track day action coming up?

[@trigun989]

Been in a friends 2020 compared to my 2017 I got to say the sound deadening and interior quality is a lot better. No rattles too :O but im sure that comes with time lol

[@adamone90]

Keep up the good content

[@reflexboxer2ndlt807]

For any significant power increase ur gonna want a clutch. By at least 300 wheel

[@StreetInspired1]

I feel like that really depends on how you plan on driving the car. I have a lot of friends making just shy or just over 300whp all on stock clutches with anywhere between 20k-70k miles. My last wrx the stock clutch survived 73k miles Making 362whp and lots of launches and abuse. Eventually doing 3 passes at the drag strip one day fried it and I replaced it with an ACT. My current wrx is at 15,000 miles and 14,000 of those were at almost 400whp. It still feels super solid but I haven't been constantly launching it or anything either. I think kf you plan on tracking the car or have high mileage I would do the clutch before adding more power. But besides that i feel like it's a case by case situation.

[@BlackWat3rGTR]

Grimspeed intake, Cobb TMIC, EGR and TGV deletes, Grimspeed J-pipe. That's what's on my 15WRX and I've got 320whp... That's all you need for a daily. Anything more, get another car for a daily.

[@nikesbeast]

Really good video very good performance mod list thank you

[@JunkWoodProjectswithJacob]

Chargepipe? Could help you!

[@StreetInspired1]

Definitely getting one soon!!

[@dfjdskf9234j4fisd]

I’ve never heard of a “performance” edition

[@StreetInspired1]

They only did it on the 2020 models. They made a performance package with Recaro Seats, Brembo Brakes, and "sunroof delete".

[@jeremybahr8527]

They did it on the 18s as well.

[@romansh6737]

@@jeremybahr8527 No Brembo brakes on 18 WRX. Recaro seats plus high performance brake pads with regular calipers painted in red.

[@Flatbushfonz]

Need that AOS my dude

[@StreetInspired1]

Thats Very high up on my to do list. Car has less than 1,000 miles when I installed tgv and egr deletes and if I get that aos on there before 5k that thing should stay nice and clean!

[@Flatbushfonz]

@@StreetInspired1 I did it at 8k miles am at 10k now.

[@Dave-so7sf]

Have a friend with a FBO (E85) FP Blue FA20. He was making 460ish WHP on a stock unopened motor. Motor lasted 18k miles and recently decided to snap a rod in half and crack the block. Just be prepared if you decide to do that. The tuner told him that he sees a lot of rear differentials explode at that power level too. However thing was pretty damn fast and fun. Pretty sure it’s coming back bigger and badder.

[@StreetInspired1]

@@Dave-so7sf Yeah most FA guys trying to go over 450whp start looking into STI drivetrain swaps. Im gonna make sure I have funds set aside for a rebuild if something happens before I go full send.

[@blastedgone]

Who the hell is Owen?

[@StreetInspired1]

Not sure what you mean? The only 2 names I remember putting out in this video was my friend Tyler and I said my tune was done by Ron Watson.

[@cristianmiranda9343]

Nice supercharger