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Discussion Starter #1
So I'm just wondering what mods I'm going to be needing to reach around 360 whp on my 2016 WRX? I would love to go 400 whp or higher but don't really see there purpose. I know that of course I would need an intake, turbo back exhaust, and a tune. But am I going to need an upgraded turbo to get that high? Any mods that you would suggest let me know, I'm open ears for any info! On a side note, am I going to see a big difference from a high flow catted Jpipe and a non catted? If there is a huge difference I would do it, but I live in Colorado and have to do emissions and I can't stand the smell of the complete catless exhaust.
 

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You may see 5 whp from a catless down pipe. Both will fail emissions testing. So if that is a concern for you keep the stock exhaust so you can swap it in for emissions. You will likely need two tunes as well one for the stock exhaust one for the turbo back.

As far as I can help you there is going to be more than bolt ons to get you to near 400whp.

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Discussion Starter #4
I know that I would need far more than bolt ons with 400whp. I guess my true question is, what is the limit I can push my car to with keeping it safe and reliable still?
 

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360 WHP is doable on stock turbo if running full bolt ons with e85. Full bolt ons would be intake, turboback (catless), ebcs, upgraded intercooler with piping, upgraded turbo header/manifold (agency power makes one), lightweight pulley (might help) ,tgv deletes, air/oil seperator (to prevent any undesired detonation over long period of time). On 93 pump gas you "should" be able to make anywhere between 335-350 whp depending on geographical location and gas quality. But you will be near 380-390 whp with e85. All in all this will be about $5k in parts and more if you have a shop do install.
 

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Discussion Starter #7
360 WHP is doable on stock turbo if running full bolt ons with e85. Full bolt ons would be intake, turboback (catless), ebcs, upgraded intercooler with piping, upgraded turbo header/manifold (agency power makes one), lightweight pulley (might help) ,tgv deletes, air/oil seperator (to prevent any undesired detonation over long period of time). On 93 pump gas you "should" be able to make anywhere between 335-350 whp depending on geographical location and gas quality. But you will be near 380-390 whp with e85. All in all this will be about $5k in parts and more if you have a shop do install.
Say if I was to go for the 300 whp, would you recommend and upgraded intercooler as well? Also with all the bolt ons making 380 to 390 with e85, is that safe and reliable to run on the stock engine block?
 

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Say if I was to go for the 300 whp, would you recommend and upgraded intercooler as well? Also with all the bolt ons making 380 to 390 with e85, is that safe and reliable to run on the stock engine block?
The stock intercooler is capable of handling "stage 2+" power. I have read other members have upgraded there intercooler and have actually lost power top end. Dont quote me but the stock intercooler should be good for about 340-350 whp. I really cant comment on reliability but some performance companies have boosted the motor to hit 450+ whp on stock internals. Granted you dont beat the piss outta it everyday, i dont see why reliability would be an issue with e85.
 

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Discussion Starter #10
Say if I was to go for the 300 whp, would you recommend and upgraded intercooler as well? Also with all the bolt ons making 380 to 390 with e85, is that safe and reliable to run on the stock engine block?
The stock intercooler is capable of handling "stage 2+" power. I have read other members have upgraded there intercooler and have actually lost power top end. Dont quote me but the stock intercooler should be good for about 340-350 whp. I really cant comment on reliability but some performance companies have boosted the motor to hit 450+ whp on stock internals. Granted you dont beat the piss outta it everyday, i dont see why reliability would be an issue with e85.
Sweet! Thanks for the info man!
 

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Something that I can DD and not have my engine blow up on me
Then put a big v8 in it. Every hp over the stock 225ish who you add you increase the likelihood of failure, you also risk warranty claim denial on a brand new vehicle.

Stage 2 is the common power and reliability middle ground from what I've seen. You can look around these and other forums and see all the engine replacement threads out there. Ultimately it's your call.

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Something that I can DD and not have my engine blow up on me
Public Service Announcement. "I want 400whp!" Are you sure? - NASIOC
I suggest you read this article which is a sticky in the engine mods section.... its a really good read for questions like this.

IMO, a good reliable DD doesn't fall into the same category as a 360+ HP WRX. The parts/tune that will be required to make that kind of power will completely kill the reliability of something you'd be looking for in a daily. And more notably, you will definitely kill your warranty with the mods required to get you there. If I were you, I would be looking to make somewhere in the 300-320 range which is a good amount of power in an AWD vehicle and keeps the car a reliable DD. Just my .02
 

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From the engine failures ive seen thus far, most of them seem to be due to bad tunes or lack of tunes and people pushing over the 350 mark. There are of course plenty of failures from all stock cars as well but the harder you push it, the more you risk. It seems like between the fa20 in the brz and the fa20dit in ours, the rods start bending over the previously mentioned 350 mark.

im currently at 280/305 and plan to stop power mods after getting an intercooler and tgv deletes since this is my daily driver. id feel more comfortable pushing more out of it with e85 or water meth only if i had a built short block.

Just my 2 cents
 

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So I'm just wondering what mods I'm going to be needing to reach around 360 whp on my 2016 WRX? I would love to go 400 whp or higher but don't really see there purpose. I know that of course I would need an intake, turbo back exhaust, and a tune. But am I going to need an upgraded turbo to get that high? Any mods that you would suggest let me know, I'm open ears for any info! On a side note, am I going to see a big difference from a high flow catted Jpipe and a non catted? If there is a huge difference I would do it, but I live in Colorado and have to do emissions and I can't stand the smell of the complete catless exhaust.
I would be looking for the best tuner within your geographic area if this is something you really want to do with your brand new car. Research the crap out of the tuner and make sure they are reliable and have experience with the new generation cars. Then ask them these questions. I haven't seen any members on this site that have tuned the new generation to that level of power yet, so you are just going to get a bunch of hearsay. There has been some pretty impressive results published on the internet for the newer generations, so there are some examples out there if you do some digging.
 

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FA20D is in the brz.

FA20F is in the wrx.

The entire question here is it worth bolting on a bunch of power to a car you don't own yet. If it is to you look around in the build sections here, get ideas of what you want exactly then go talk to your local performance shop. They will be the ones dealing with the tuning so its best to stick with what they are comfortable with.

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Discussion Starter #17
So of course I am not going to go anywhere near 400 whp. I would like 300 though. I will keep in mind all of the great info! I have done some research on two tuners down here in Denver and they both seem to be pretty creditable tuners. One is Cryotune performance, he actually owns a 2015 wrx and seems pretty knowledgable with these cars. He has a good reputation down here too. There is also the Boost Creep with everyone probably knows of, he is a very well sought after tuner. He didn't seem to have much knowledge on 2015 in my opinion. He gave me a short response on the email I sent him as to where cryotune has had endless emails with me and sat downs on he phone with me and explained all of my options very clearly for about 30 minutes
 

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300 to the wheels is much more realistic and do able. a shop by my house has a 2015 with a tbe, intake, electronic boost controller, and tuned a bit aggressive on 91 making about 270 hp and 28x torque to the wheels.


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Random number, especially if you're stock.
 
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