EL Headers “plug and play”

[86TOYO2k17]

Originally Posted by raz.sofer

So if I get an OFT and flash the ecu back and forth they wouldn’t know? Sounds awesome.
Headers here does not void the warranty (well they do but the mechanics at the dealership don’t know anything about these cars because they do not get them a lot. we only have 150 brzs in the country) the only thing I need to worry about is if I flash the ecu back to stock and a cel pops up that they will check it


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Yup, they have no way of telling.

[KingJon1991]

i have JDL UEL headers i run with out a tune for a day and had no check engine light and yes the grimm speed gaskets will work there 2 gaskets in a pack

[OwlDance]

Word of note, I have read and been told that it's not exactly difficult to read if an ECU has been flashed. Disclaimer, I don't have experience with modding but had my questions answered out of curiosity by those who do heavy aftermarket work on these cars.

The least I can say is that it's almost definitely not fool-proof to flash back to stock. Whether you get denied work just depends on the dealer or even the tech that day.

[86MLR]

For my catless header I used a mini cat O2 90° extension and never had a code.

No tune for 4k km, no codes over that time.

I would suggest doing header and overpipe all in one go.

A "well designed" $500 header can give near on typical gains to a $2000 header.

A well engineered $80 overpipe works just as good as a $300 overpipe.

A punched out (hammer and screwdriver cat delete) OEM 17+ can give typical gains to the majority of aftermarket headers.

There are exceptions with multiple designs to suit your needs, but you pay to play with them, they are more beneficial for NA cars at the pointy end and supercharged applications.

If your car is a daily you can get most of the performance benifits cheaply.

If you have a racecar and require the best to be competitive you need to spend big for a couple more HP.

To use all the added breathing capability you need a tune.

A "real" dyno tune will really wake up the car, but it costs more, ECUTEK is my preferred hack (racerom is sweet, rev match is my fav as I can not heal toe to save my life), other edits are out there, or if race car get stand alone if required.

OFT is cheap for a reason, it's generally only ever average, it is popular and pretty idiot proof though.

In the end (real world) don't expect alot from a NA FA20.

Exhaust can be done in your driveway on stands.

Let the car cool and spray wd40 on all nuts and bolts, leave it to work for an hour.

Use new gaskets (I also use exhaust silicon copper stuff sealer).

Use a torque wrench for the header bolts, don't over tighten.

Easy, you just done manly car stuff, you are now officially awesome.

[MCTeeJ]

Originally Posted by raz.sofer

I'm kinda scared about the warranty, I have like a year and a half left for it and if something will happen to the car it can get very expensive in israel
The real question is if I can drive without a tune and just ignore the cel or will it affect the performance instead of making it better.
Beautiful car btw!

I just realized I didn't read you were looking to get a catted EL, not UEL. Um well, you're replacing a catted EL with a catted EL so I guess it's not that bad? I would still get a tune because honestly the factory tune isn't exactly amazing, but that's your choice.

[86TOYO2k17]

Originally Posted by OwlDance

Word of note, I have read and been told that it's not exactly difficult to read if an ECU has been flashed. Disclaimer, I don't have experience with modding but had my questions answered out of curiosity by those who do heavy aftermarket work on these cars.

The least I can say is that it's almost definitely not fool-proof to flash back to stock. Whether you get denied work just depends on the dealer or even the tech that day.

It’s been discussed dozens of times on the forums. It’s incredibly difficult and almost impossible for the majority of dealerships to tell. Need very specific hardware and software that almost no dealership has. Not something I would worry about.

Not to mention atleast in the states. No warranty can ever be void, only a claim can be denied IF they can prove your modification contributed to the failure.

[Dr. BRZ]

Originally Posted by raz.sofer

Well I will regret for asking.. Why not?


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Since your worried about everything, just ignore the headers for now and get a catback exhaust. You don't need a tune for a catback and you'll get 3hp+! Most dealerships don't care about aftermarket catbacks.

[86MLR]

A cat back is money for noise IMO, the money outlayed for a cat back could be spent on a header and overpipe for some real gains not just noise.

I'm not sure you will get any real gains from a catted header though, maybe a 100 cell cat would see enough flow to show some real gains??..

In the end it's removing the restriction from the cat in the header that lets the engine breath, the header design in relation to diameter and runner/secondary and collector design help flow but also moves around your power curve.

Do some reading about Ace headers and their characteristics from different designs.

[bfrank1972]

Originally Posted by 86MLR

A cat back is money for noise IMO, the money outlayed for a cat back could be spent on a header and overpipe for some real gains not just noise.

I'm not sure you will get any real gains from a catted header though, maybe a 100 cell cat would see enough flow to show some real gains??..

In the end it's removing the restriction from the cat in the header that lets the engine breath, the header design in relation to diameter and runner/secondary and collector design help flow but also moves around your power curve.

Do some reading about Ace headers and their characteristics from different designs.

I have an aftermarket catted EL header, big difference over stock.

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[x808drifter]

Worried about warranty (He's NOT IN THE USA)
Find out locally what will make you lose warranty.

Anyone else on here is talking out their ass in your particular situation.

No header "requires" a tune, but you are just throwing money away without one.
A tune alone will probably net you a good gain on a bone stock system.
As others have said, you can reflash back to stock and most likely no one will know.

Both OFT and ECUTek will be able to go back to stock.
OFT = Cheaper but one size fits all kind of tune.
ECUTek = More expensive but opens access to more custom and dialed in tunes.
Also yes, a catback will do almost nada but make the car louder.

TLDR;
Too worried warranty may be affected = Don't do anything.

Take the slim chance = Get a set of headers AND a tune. Enjoy the car.

[KingJon1991]

your going to need a tune with any headers you get.

the tune is going to correct fuel and air ratio and will run a lot better