Subaru WRX 2003, Downpipe by Injen®. Eliminate restriction and maximize exhaust flow with this quality stainless steel downpipe.
The engineers at Injen have many hours of dyno experience testing intake and exhaust systems. Simply put, they know what works. When you buy an SES (Stainless Exhaust System) exhaust component you can be assured that rigorous testing determined its diameter and shape. The part you receive is the one that will make the most power on your vehicle.
The expert design is realized with the finest craftsmanship. Every exhaust part is manufactured using premium materials and modern techniques to ensure it fits perfectly and lasts for as long as you own your vehicle. All parts are made from 100% 304 grade stainless steel to prevent failure from rust and corrosion. All tubing is CNC mandrel bent, all flanges are CNC machined and all parts are robotic Tig welded to make sure your installation goes smoothly. Every Injen exhaust system part comes complete with everything needed for installation, including comprehensive instructions.
Injen Technology Company, Ltd., based in Pomona, California, was formed as a sister company to RD Metal Works in 1998, to utilize the experience and design capabilities that RD Metal Works had gained designing and manufacturing air intake kits for leading air filter and intake manufacturers. Since that time, the company has made it a point to stay at the forefront of performance technology, continually setting new standards for quality and improving their engineering and manufacturing capabilities. This enables Injen to regularly introduce new, cutting edge products to market and has required the company to continually expand to meet the demand for those products. Today, Injen continues to set the industry benchmark for innovation, styling and technology.