2015+ Subaru WRX CVT Upgrade Path

XRT Recommendations: Modification Scheme for 350-400whp


Gauges


Fuel System


Exhaust System


Intake System


Boost System

Oil Recommendations: Motul

CVT Transmission Cooler: Tru-Cool LPD

Tuning:

12 responses on “2015+ Subaru WRX CVT Upgrade Path

  1. Aaron D

    I was jus curious, an had a question about the suggested mod path. You guys have a dw300c fuel pump listed, if one isnt adding flex fuel capabilities, what is the purpose/benefit of upgrading the stock fuel pump?

    1. XRT Post author

      If you do not have any issues with the pump, you can continue as normal. It is to provide longevity for Higher flow.

  2. Aaron D

    I have a 2017 wrx limited..CVT..tuned with these mods I’m making 280 Tq/300whp on 93 octane
    Cobb V3 AP
    Tmic/charge pipe
    Cai
    Catted jpipe
    Aos
    3-port ebcs

    1. Aaron D.

      Finishing off the exhaust to a complete turbo-back will put me ovr 300 all around..after that, one could add Flex Fuel capabilities..an you would be well into..I would say 330 maybe..not sure..but at the point I’m at..a transmission cooler will need to be added. I can honestly say that with where my cvt is now, is a great increase over stock, it’s like the engine has been uncorked. This is what these cars should be like from factory.

  3. James Skarzenski

    With these mods and stock cvt you guys are getting 400 whp? I am getting 316-330 whp and have all these mods plus a 5 inch FMIC and F1 Motorsports high torque converter upgrade. Do you feel the stock CVT can handle 400 whp as a daily without issues?

  4. Thomas

    Hi my names Thomas I drive a 2019 CVT Subaru WRX and I’ve been looking to build my car to be around 400-450 whp and maybe 400 tq. I guess my main question is how much it would cost roughly to go from stock to there and is it safe to do so. Without blowing the trans obviously.

    1. XRT Post author

      The CVT may not last so long due to design limitations. When modding the Subaru to this level, we prefer to use other software that allow us to adjust the torque holding capacity of the clutches.

      Regardless, you may have issues with the cvt belt and clutches.

  5. Adam deltoro

    Very interested in extra ponies on my txt, have herd of lots of horror stories with cvt. How long have you been testing this?

    1. west_minist Post author

      Testing what?

      Our testing is for good function. We custom tune for you and the car. Not all cars are the same.

    1. west_minist Post author

      We were not aware at the time of such mod, even working with owners who were heavily modded

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