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“aFe Power Twisted Steel Long Tube Header 02-19 Subaru Impreza WRX/STI/Legacy (Unequal Length)”
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Supplier details checked 2026-09-23 · Test catalog
Twisted Steel Long Tube Header 304 Stainless Steel Subaru Impreza WRX/STi/Legacy 02-21 H4-2.0L (t)/2.5L (t)
Twisted Steel Long Tube Header 304 Stainless Steel
Works with Factory Exhaust System with No Modifications Necessary
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% TIG-Welded for Strength and Durability
aFe Power Twisted Steel Long Tube Header 02-19 Subaru Impreza WRX/STI/Legacy (Unequal Length)
Twisted Steel Street Series Header
Twisted Steel Header
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% 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.
