aFe Power Twisted Steel Unequal Length Long Tube Header Subaru Impreza/Legacy/WRX 2002-2021 (H4-2.0L / 2.5L)

Fits select 2002-2021 Subaru Impreza, Legacy, WRX, and WRX STI models (H4-2.0L / 2.5L).

The aFe Power Twisted Steel Long Tube Header is engineered to optimize exhaust flow while maintaining the iconic Boxer "rumble" through an unequal length (UEL) design. Constructed from 1-5/8 inch to 2-1/2 inch mandrel-bent 304 stainless steel tubing, this header reduces backpressure and improves scavenging for enhanced performance. The brushed finish provides a professional look, while the heavy-duty laser-cut flanges ensure a precise, leak-free seal at the cylinder heads and turbo flange.

This header is a direct bolt-on solution designed to work with the factory exhaust system without requiring modifications. Every unit is 100% TIG-welded for maximum strength and long-term durability in high-heat environments.

• Unequal length (UEL) design for improved flow and signature exhaust note
• 1-5/8 inch to 2-1/2 inch mandrel-bent 304 stainless steel tubing
• Thick laser-cut flanges for a durable, leak-free seal
• 100% TIG-welded for superior structural integrity
• Brushed finish for corrosion resistance and aesthetics
• Direct fit with OE exhaust system; no modifications needed
• Manufacturer Part Number: 48-36803