aFe Power Twisted Steel Long Tube Headers are engineered to maximize exhaust flow for increased horsepower, torque, and improved throttle response. Constructed from mandrel-bent 304 stainless steel tubing, these headers provide exceptional strength, durability, and corrosion resistance for long-lasting performance. The optimized unequal-length tube design enhances exhaust scavenging while creating the iconic boxer rumble.

Formed collectors reduce turbulence and improve exhaust velocity, while factory-style laser-cut flanges provide a secure, leak-free seal. Featuring 100 percent Tig-welded construction, the Twisted Steel Headers are designed for a direct-fit installation using factory exhaust locations with no cutting or modifications required - proudly engineered and manufactured in the USA.

Features and Benefits:

• Constructed from 1-5/8 Inch - 2-1/2 Inch Mandrel-Bent Brushed Finished 304 Stainless Steel Tubing
• Constructed out of Mandrel-Bent 304 Stainless Steel Tubing
• Optimized Tube Lengths for Improve Flow and Performance
• Laser Cut Flanges are used for a Durable Leak-Free Seal
• 100 percent Tig-Welded for Strength and Durability
• Works with Factory Exhaust System with No Modifications Necessary

Details:

• Application: Automotive
• Collector Tube Size: 2.5 Inch
• Emission Code: 1
• Engine Make/Size: Subaru 2.5L
• Fuel Type: Gas
• Liter: 2.5 Liter
• Material: 304 Stainless Steel
• Port Shape: Rectangle
• Series: Twisted Steel
• Tube Diameter: 1.625 Inch
• Tube Direction: Down Swept
• Warranty: 2 Year

Applications:

• Subaru Impreza Wrx/STi/Legacy 02-21 H4-2.0L (t)/2.5L (t)