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Discussion Starter · #1 ·
I am going to buy my first Subaru in March. A 2018 premium wrx. My question is this...

I want to run an intake, cat back or axle back exhaust and the access port.

How safe is this? I want to maintain reliability of the car. Can a dealer see any of the parameters the access port changes when it's removed and parts are back to stock? Can these mods cause damage or shorten the life of the engine?

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The dealer will know anything you swap and if an a tune has been flashed to the ECU.

If it is a concern stick with an axle or cat back exhaust.

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Would Never, Ever Say Something Bad About an Admin
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If you can’t afford to fix it out of pocket do not modify it.
 

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BooSTIng
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Generally speaking the OTS maps on the accessport are pretty safe. And with what you are wanting to do, basically just an intake as that is the only mod mentioned that will require a tune, you would run the stage 1 map from the AP assuming you install an intake that covered in the map notes for that particular map. Like I said, the car would run just fine with little to no issues in reliability.

However, adding anything aftermarket and flashing a new map to the ecu will result (9 out of 10 times) in a warranty claim being denied. Nothing can void your warranty. But it is easy for a dealership and SOA to put the blame of a major failure on the fact that the car has been tuned and aftermarket parts have been applied.

Basically like SonicWagon mentioned, you have to pay to play. Modifying and tuning is fine, but better be sure to have money set aside if something happens and you have to pay out of pocket for repairs.
 

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Discussion Starter · #6 ·
Generally speaking the OTS maps on the accessport are pretty safe. And with what you are wanting to do, basically just an intake as that is the only mod mentioned that will require a tune, you would run the stage 1 map from the AP assuming you install an intake that covered in the map notes for that particular map. Like I said, the car would run just fine with little to no issues in reliability.

However, adding anything aftermarket and flashing a new map to the ecu will result (9 out of 10 times) in a warranty claim being denied. Nothing can void your warranty. But it is easy for a dealership and SOA to put the blame of a major failure on the fact that the car has been tuned and aftermarket parts have been applied.

Basically like SonicWagon mentioned, you have to pay to play. Modifying and tuning is fine, but better be sure to have money set aside if something happens and you have to pay out of pocket for repairs.
Thank you. Realistically I just want to hear more turbo sounds. I'm almost 40 years old. I have no intentions of modding the car at all. My intentions for adding the intake were purely for my ears. Same with the axle back exhaust. It's not a deal breaker for me though. If I can't do it then stock is perfectly fine for me. I'm a bike guy so I get my adrenaline pumping on 2 wheels. I'm a pretty mellow car driver.

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At 62 yrs/old and driving sports cars my entire life-- it's been a long-standing fact that the incoming air (intake) and outgoing air i.e. exhaust is crucial to better performance. The fastest / easiest way is similar to small turbo-prop airplane engines and Formula 1 cars with the 8" long exhaust pipes. But it's too loud for (legal) street use. Hence Cobb's air -intake and quicker exhaust will only help the engine-both mechanically and longevity. All internal combustion engines work on that basic principle. Because Cobb utilizes up-to-the-date measuring eqpt. - be assured the Stage 2 exhaust will be a benefit. By the way, I just finished installing the downpipe, J-pipe (non-resonated) and Cat-back system. Run's like a raped ape. There's not many cars that will beat this from 0-60 or 0-100.... Been learning about the new ways to make your WRX look better. This new ceramic stuff is pretty cool. I come from the old school where more buffing meant a brighter shine -- not so with these new materials they have out. Just my 2-cents...
 

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I Drink & I Know Things
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I'm 40 now and I've got all my parts gathered to go stage 2+ with a frickin' CVT so I can't tell you NOT to do it. Just make sure you get a proper tune for whatever parts you're planning. I've had a modded WRX in the past that had a couple minor issues covered under warranty. So, it's a risk, but sometimes you catch a break. Definitely consider it a pay-to-play situation though.
I can highly recommend the ETS 'quiet' CBE w/ resonator setup though. I love it on mine. Loud when you get on it, but subdued when you're cruising. Zero drone. I also recommend a dry flow filter if you change out the intake vs. oiled filter.
 
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