Part #: 21S - 01 - 0565 - 4. These Deatschwerks fuel injectors are a perfect fit for 2002 - 2014 WRX, 2007 - 2021 STI, 2007 - 2012 Legacy GT, 2007 - 2009 Outback XT, and 2006 - 2013 Forester XT models. They're engineered to match your OEM harness, fuel rail, and manifold, using only high - quality OEM cores. Each set is balanced within a 2% variation, making tuning a breeze. This results in better fit, easier tuning, and enhanced reliability. Deatschwerks stands behind these injectors with a full 12 - month warranty. Every set undergoes flow balancing and quality assurance testing. They're analyzed at over 40 data points on DW's in - house New Age Technologies injector flow bench. Even though they're made from used OEM cores, you're getting a top - quality, reliable, and high - performing product at an unbeatable price.
Using these Deatschwerks fuel injectors is straightforward. First, make sure your vehicle model is one of the compatible ones: 2002 - 2014 WRX, 2007 - 2021 STI, 2007 - 2012 Legacy GT, 2007 - 2009 Outback XT, or 2006 - 2013 Forester XT. Then, install them following your vehicle's standard injector installation process, as they're designed to fit your OEM harness, fuel rail, and manifold. When it comes to maintenance, it's a good idea to use high - quality fuel to keep the injectors working well. Check them regularly for any signs of leaks or damage. If you notice any issues with your vehicle's performance, like rough idling or poor fuel economy, it might be time to have the injectors inspected. Remember, these injectors come with a 12 - month warranty, so if there are any problems within that time, you're covered.
