Fitment Information: This high - performance header and uppipe kit is a perfect fit for 2008 - 2014 Subaru WRX, 2004 - 2021 Subaru STI, 2005 - 2009 Subaru Legacy GT, and 2004 - 2008 Subaru Forester XT. For 02 - 07 WRX, it fits with specific requirements: 2002 - 2005 WRX needs a 2.5L STI Oil Pan, and 2006 - 2007 WRX requires an STI Oil Cooler and STI Oil Pan. Features: IAG Performance Equal Length Headers are a great way to boost your Subaru WRX and STI's performance. With a 4 - 2 - 1 configuration of equal - length tubing and a merged collector, it can improve turbo spool up by 300rpm. The free - flowing design enhances exhaust flow across the entire RPM range. Made of 304 stainless steel, including cast stainless flanges, the 45mm pipe diameter ensures maximum flow. It has a slip - joint expansion section for heat - related flex and is fully TIG welded for strength. The equal - length design changes the exhaust tone to a smoother note. The package includes an IAG 60mm uppipe with a 3 - bolt cast flange and multi - layer gasket, preventing exhaust leaks. All necessary hardware and high - quality multi - layer gaskets are provided, like specialty copper exhaust nuts that hold torque in extreme heat. What's in the Box: (1) Equal Length Stainless Steel Header, (1) 3 Bolt Stainless Steel 60mm Uppipe, (1) 3 Bolt Uppipe Gasket, (3) Uppipe to Manifold Zinc Plated Bolts and Nuts, (5) Uppipe to Turbo Threaded Studs, (1) EGT Plug, (6) Copper Flange Nuts (Manifold to Head), (2) Manifold to Cylinder Head Gaskets, (1) Uppipe to Turbo Gasket.
Using this IAG header and uppipe kit is a great way to upgrade your Subaru's performance. First, make sure your vehicle is one of the compatible models. If you have a 02 - 07 WRX, check that you meet the specific fitment requirements. When installing, carefully follow the included instructions. The kit comes with all the necessary hardware, so don't lose any parts. For maintenance, since it's made of stainless steel, it's quite durable. But you should still regularly check for any signs of wear, like loose bolts or exhaust leaks. If you notice any issues, it's a good idea to tighten the bolts or replace the gaskets. Also, keep in mind that the equal - length design changes the exhaust tone, so enjoy the new sound of your Subaru. And remember, the copper exhaust nuts are designed to hold up in extreme heat, but it's still important to check them periodically to ensure they maintain their torque.
