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 translates to better fit, easier tuning, and enhanced reliability. Plus, they come with a full 12 - month warranty. Deatschwerks tests every set for flow balancing and quality assurance, analyzing them at over 40 data points on their in - house injector flow bench. Even though they're made from used OEM cores, you're getting a top - notch, 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). Install them following the standard procedures for your car's fuel system, as they're designed to fit your OEM harness, fuel rail, and manifold. When it comes to tuning, since they're balanced within 2% variation, it should be easy. Just follow your normal tuning process. As for maintenance, keep an eye on your vehicle's performance. If you notice any issues like a drop in power or a change in fuel efficiency, it might be time to check the injectors. And remember, these injectors come with a 12 - month warranty, so if anything goes wrong within that time, you're covered.
