someone just told me about this over the weekend, allegedly some debate if this would disqualify the car from certain types/divisons of organized track driving?

 

Interesting, wish it was reversible of course. I could imagine a bit more intake noise doing this, which is welcomed on this car. I don't plan on doing anything intake related outside of a dryflow air filter. Preferably Grimmspeed launches theirs soon.

 

Greta will not appreciate this....

 

How dare you!

 

Still eagerly awaiting the release of the GR intakes.

Also great write up Lol

 

I never really bought into the notion that you can get more air into an N/A engine.

 

I have always had my doubts as well. Dynos from reliable sources seem to show there can be gains. Not on all cars in all cases though. I do believe the information in the video I posted to be true. That guy has a great channel and has a good track record of being accurate and reliable. Claims from the manufacturer are in many (majority) cases inflated or just plain imaginary. The dyno is one thing, but in the video the test car actually decreased its 0-60 time by 0.3 seconds as well. That is a huge change. I do not think an intake system (AKA tube and cone filter) will be worth anything on this car. But I do believe that goofy carbon filter was robbing potential air flow.

 

I'm skeptical that this works. Seriously, look at all the testing that was done on cold air intakes and short ram intakes in the first FRS/BRZ generations. By eliminating the stock piping it would've effectively yielded the same effect as the video. No real gains anywhere.

Dropping in a K&N filter yielded the same results but for hundreds less money. At the end of the day, it depends on the engine.

 

The 1st gen cars did not have this stupid charcoal filter. I am betting removing that will show gains.

 

I'm just going to pull the filter and run straight charcoal filter, max airflow this way.

 

I would of bought another air-box to modify it; once Subaru sees that you removed an emissions-component they're going to give you a hard time. Dealerships LOVE to void warranties, a lot of their income comes from the service/parts department.

Going to wait for some poor sap to install an aftermarket intake and swoop up their OE.

 

Not at all. They would rather not void a warranty. With warranty coverage they are guaranteed to get paid and most people will let the dealer do the work no matter how minor. Void their warranty and a lot of people are walking out the door. They will do the work themselves, have a buddy do it or bring it to an independent shop. My son is a service writer for stellantis. In all honesty they will typically warranty cars that probably shouldnt be. Warranty coverage is very often misunderstood or exaggerated.

 

Saw a post on FB group, a dude dyno with and without the carbon mesh filter, there's like 2hp gain. Swap to k&n has very little gain about 1 hp.

 

Of course, you are removing an air restriction. If you break it down tho, of course you'll never actually feel those gains. The added induction noise is cool in a car this quiet

 

I personally don't care about warranty. The law is pretty clear about what they can and cannot do in terms of coverage. If they can manage to prove that the removal of what looks like a fish tank filter pad from my intake system caused some problem down the road, I commend them. LOL
This car has many more mods to come, including making it run on a fuel it is not intended to use (E85) and more than likely a header and some forced induction. I can understand people being concerned about warranty, but im not that guy. If it breaks, it breaks. Thats just an excuse to take it to the next level while fixing it.

 

Well fuckin said

Something broken? Fix it bigger!!!!!

 

Tru-Boost you are always the forum guy I trust. Just bought a 2nd upper air filter chamber with shipping $75. Am going to keep the OEM and modify the the new one. Have been running the K&N but will switch to the WIX filter which is dry. If there are issues with charcoal removal will still have the original. May be overthinking the deal but $75 does not break the bank and gives me a backup.

 

Tru-Boost you are always the forum guy I trust.

I dunno, I heard that guy once punched a magician.

 

I’m not gonna do it not only for my warranty but also I live in California and they’re becoming stupid here so I’m worried about emissions

 

They won't check that, they only plug into OBD-2 and look for obvious shit.

 

Utah is wacky about shit. They did away with safety inspections but still do emissions. That is why I bought a 2nd housing in case of issues. Seems like it will be ok but just giving myself an out.

 

We are talking about state employees here. They are never going to open your airbox to see what is going on in there. They would be liable for screwing up peoples vehicles (and they absolutely would). This is no different than slapping a CARB approved sticker on there but then changing the tune in the ECU. They have no idea. I can assure you they will not be doing any invasive inspections at the expense of taking liability.

 

Do we have a Subaru part number for the Subaru JDM intake housing? It comes without the charcoal fish tank filter. It would be an easy swap and we could keep the Subaru US fish filter model in storage.

 

Probably would be cheaper to buy an extra US spec one & take out the fish filter.

Part # 46059CC000

2022 Subaru BRZ 2.4L 6MT Premium Air Cleaner Cover. Air Filter Housing. Engine Air Filter. Case Complete - 46059CC000 - Genuine Subaru Part

Air Cleaner Cover. Air Filter Housing. Engine Air Filter. Case Complete (Upper). An Air Filter For the Air Intake System of a vehicles Engine. 2022 Subaru BRZ 2.4L 6MT Premium. Genuine Subaru Part - 46059CC000

parts.subaru.com

 

Getting one shipped as we speak. Was $75 with shipping out of AZ. Will remove the charcoal filter from the new one and install, save the original if issues. Also switching out the K&N with a WIX filter as I feel better with a dry filter after charcoal delete. Picture of new part 46059CC000 with filter removed. Did some sanding of attach points to clean up all the residue.

 

Is the automatic different from the manual?

 

Do not think so, same part.

 

I think you guys may be jumping the gun here...

1) I can't speak for other States, but California doesn't require any inspections for five years... that means you won't need to change it out for five years, and in five years, I am positive that eBay is going to have plenty for cheap.

2) No one is going to pop open the airbox... and if they did unless they were intimately familiar with the car, they're not going to know something is missing especially if you do a clean job.

 

Couple things; I took mine out, if anything I'll take the 2hp. Also this won't void any part of your warranty. Like someone said they have to prove it damaged something. Also I am 100 percent confident my dealership service department wouldn't even know it was missing unless they were told to look for it. They don't know these cars well.

 

Its not just a BRZ\86 thing. This is common on all new vehicles. Its an emissions thing. It certainly wont cause any harm though. Its honestly a useless device that manufacturers are using to shut the EPA up.

 

Just took apart my filter box this weekend and found what looks like almost a KN drop in filter inside instead of this white material you have.

 

Yea mine came with this installed 100 percent looks like a kn drop in! Lol makes my life slightly easier. I probably over paid at the dealership lol

 

U bought it new? The GR filter is made by K&N so it may have that. The white charcoal mesh should be located behind the filter going toward the engine. If not lucky you..!!

 

I just wanna add that you don't need to take the airbox off in order to take it out. Just need a little oomph to get it back into place. At least, as long as you don't care about the excess on the inside.
Took me maybe a min tops in some random gas station parking lot.

 

There's no filtration between the charcoal filter and the MAF sensor and the engine's intake valves. Any loose debris will fly straight into them.

Here’s a procedure I would propose for those contemplating this improvement for off-highway use:

1. Completely remove airbox per procedure given by @TRU-BOOST in his OP
2. Remove MAF sensor and set it aside in a safe place so you don't break it or contaminate it
3. Use a utility knife with a fresh razor blade to cut away the center portion of the mesh filter. You are left with a 3/8" wide perimeter of mesh heat-staked to the airbox
4. Go in sideways with the utility knife, under the mesh, and carefully slice through the heat staking one by one
5. There will still be some white mesh and bits and pieces left at the heat stakes. Use the knife to remove and clean up as much as possible
6. Use ~180 to ~220 grit sandpaper at this point to sand down the remnants of the heat stakes and filter mesh. Use compressed air to blow away dust and debris
7. With a propane torch set to its lowest possible flame, carefully and quickly "kiss" the sanded areas by waving the flame over them. This will very slightly melt the tiny plastic "hairs" caused by cutting and sanding. It will get rid of the "sanded" appearance and make it look black and shiny again, as well as prevent any tiny loose bits from dislodging later
8. Re-install MAF sensor, taking care to re-start the screws in the same threads in the plastic so they don't strip out
9. Re-install airbox and re-connect everything in reverse order of disassembly