Borla 02-14 WRX / 04-18 STi Header

This Borla header or manifold is built for the verified 2001-2006 Subaru Legacy GT application listed below. Select it by exact manufacturer part number 17217 and confirm the full engine, drivetrain, body, wheelbase, factory-exhaust, and Borla application notes before ordering.

Key Features

• T-304 Stainless Steel Construction: Premium austenitic material resists corrosion and outperforms T-400 series for long-term durability.
• Mandrel Bent Tubing: Ultra-smooth bends with OEM tube diameter promote maximum exhaust flow and power gains.
• Stiffened Flex Joint: Reduces vibration and enhances reliability under high-performance conditions.
• Leaders in stainless steel exhaust since the 1970s, starting with classics like Ferrari and Rolls-Royce.
• Focus on power gains, torque, and fuel efficiency through engineered flow design.
• Precision-welded all-stainless construction for motorsport-level durability.

Fitment

Specifications

What’s Included

One new Borla product identified by manufacturer part number 17217. Clamps, hangers, gaskets, tips, pipes, tools, and companion parts are included only when expressly listed for this exact part number.

About Borla

Borla develops stainless-steel exhaust systems, mufflers, tips, pipes, and related components for vehicle-specific and universal performance applications. Product selection remains exact-application and exact-part-number specific.

Related Borla Products

• Borla 15-16 Chevy Colorado/ GMC Canyon 3.6L V6 Crew Cab Long Bed Extension Pipe
• Borla 08-14 Subaru STi / 11-14 WRX Catback Exhaust
• Borla 11-14 Subaru Impreza WRX/STI Sedan 4dr ATAK SS Catback Exhaust

Browse the Borla collection for related exhaust systems and components.

Frequently Asked Questions

Will this Borla part fit my 2001-2006 Subaru Legacy GT?
That application is listed, but confirm the engine, drivetrain, body or cab style, wheelbase, factory exhaust layout, tip opening, and every Borla application note before ordering.

Will this change require an engine tune?
A cat-back, axle-back, tip, muffler, or post-catalyst component usually does not require tuning, but confirm the exact application, emissions configuration, oxygen-sensor locations, and local requirements before installation.

What should I inspect before installation?
Check the shipping carton and components against the exact part number, then inspect clamps, hangers, gaskets, mating flanges, clearances, tip alignment, and required reused factory hardware before removing the original exhaust.

Installation Instructions

Follow the current Borla instructions and vehicle service information for this exact part number. Let the exhaust cool, support the vehicle safely, compare all parts before removal, protect sensors and wiring, use the specified clamps and torque values, align all joints and tips without preload, confirm body and suspension clearance, check for leaks, and retorque after the first heat cycles. Professional installation is recommended.