2013-2020 Subaru WRX STI High Output Alternator
AutoTech Engineering
$390.00
Available Amperages: 270amp, 240amp (also aviable in 370amp & 320amp Please message for pricing)
- Subaru Forester 2011 - 2013 2.5L
- Subaru Impreza 2011 - 2014 2.5L
- Subaru WRX 2013 - 2014 2.5L
- Subaru WRX_STI 2013 - 2020 2.5L
Large Case Alternators Small case alternator
220amps at 650 rpms 160amps at 650 rpms
Full amps at 1800rpms Full amps at 1800 rpms
AutoTech Engineering Alternators require a .5 inch smaller belt than your OEM Alternator
AutoTech Engineering alternators need a minimum of 650rpm to charge.
Unless otherwise quoted or instructed, our units come with the OEM voltage output for plug-and-play alternators. The quoted voltage settings are already built into the alternator's voltage regulator. Remember that in PCM- and ECU-controlled vehicles, the vehicle's “brain/computer” controls the voltage.
Boosted Harness Option
A boosted harness option is available at an additional cost. If you select this option, your harness will arrive with the diode already installed. You can choose 15.3, 15.5, or 15.7 volts.
What is a Bypass?
If you choose to have a bypass, you are wiring around the PCM or ECU voltage control. This allows us to customize the charging voltage beyond what the vehicle’s computer normally permits. In most cases, the battery warning light will remain illuminated.
Bypass charging voltage: 14.8V.
Important: A PCM/ECU bypass is required when using the boosted harness.
Need help wiring your bypass or have questions? Find out more here:
Tutorial videos & Frequently Asked Questions
Warranty: One year on parts and lifetime labor.
Order Timeframes
Build time is 14 days.
Powder coating adds up to 5 business days.
Shipping takes 5-7 days.
If you use Klarna, Sezzle, or Affirm, please allow an additional seven days for processing.
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Reviews
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Great alternar great people
The crimson purple came out perfect. Easy installation. Huge difference right from the start. CAS was also very helpful with any questions I've had. Thank you I will definitely be a repeat customer!!