Get the GrimmSpeed Unequal Length Header for your 2004 - 2021 Subaru STI and 2002 - 2014 WRX. Over the years, GrimmSpeed Engineers have shown they can make top - quality, high - performing exhaust components for Subaru. They take time to test, ensuring you get the best - refined product. This header fits 2004 - 2021 STI, 2008 - 2014 WRX, 2002 - 2005 WRX 5MT (needs STI Oil Pan and Pickup), and 2006 - 2007 WRX (needs STI Oil Cooler and Feed Pipe). Quick specs: It has 1.5 to 1 unequal length runners for great sound and performance, a 4 - into - 1 low - angle merge cast collector for minimal restriction, smooth flow, +25hp and +25ft/lbs torque gain over stock, fastest spooling among aftermarket headers, no tune required, comes with gaskets and hardware, fits with aftermarket oil pans, is made of full 304 stainless steel for durability, and is manufactured and welded in the USA. There's also an installation video available.
Using this GrimmSpeed Unequal Length Header is easy. Just bolt it on as it doesn't require a tune. First, make sure your car model is one of the compatible ones: 2004 - 2021 Subaru STI, 2008 - 2014 Subaru WRX, 2002 - 2005 Subaru WRX 5MT (you'll need an STI Oil Pan and Pickup), or 2006 - 2007 Subaru WRX (requires an STI Oil Cooler and Feed Pipe). All the gaskets and hardware you need are included, so you can quickly get your car on the road. When it comes to maintenance, since it's made of full 304 stainless steel, it's quite durable. But it's a good idea to check the welds and connections regularly, especially after long drives or rough roads. If you notice any signs of damage or loose parts, have it inspected by a professional. And remember, it's designed to fit with aftermarket oil pans, so you have some flexibility there. Enjoy the extra power and great sound this header brings to your Subaru!
