Skip to product information
1 of 2

Killer B Motorsports

Killer B FA20 Twin Scroll Equal Length Headers - Fits Subaru WRX 2015-2019

Killer B FA20 Twin Scroll Equal Length Headers - Fits Subaru WRX 2015-2019

SKU:KLRB-FAWRTSH

Regular price $999.00 USD
Regular price Sale price $999.00 USD
Sale Sold out
Shipping calculated at checkout.

Add more power to your FA20 Turbocharged Subaru! The factory OEM manifold is designed as a cost-effective component whereas this Killer B Motorsport Performance Header is designed with the goal of maximizing exhaust gas performance and increasing power. The equal length twin-scroll design improves exhaust gas scavenging, increasing the engine’s ability to make power.

321 Stainless Steel used in this manifold offers numerous benefits over common 304 Stainless Steel. 321 is made with the alloying element Titanium. This increases the material cost significantly, but for a turbocharged application, offers advantages over 304. 321 offers Increased strength and toughness at elevated temperatures, making it less likely to fatigue and crack. 321 was developed by the aircraft industry specifically to address longevity issues with pressurized turbocharged manifolds; addressing cracking from lower quality grades of stainless steel like 304. 321 Stainless Steel conducts less heat that 304 Stainless Steel. This means a 321 header will deliver more thermal energy to the turbocharger, improving responsiveness and efficiency. 

Large-Radius Free-Flowing Mandrel-Formed Bends maximize flow potential. Common 1D bends are easy to come by, inexpensive and provide the least performance. Advanced design, simulation, and testing was used to verify maximum performance capability of this header (further verified by independent testing).

Quality and Craftsmanship come in ½” thick billet precision CNC-machined flanges for exceptional durability and ground flat for leak-free service. TIG-welded to aircraft quality standards and ground smooth to assure turbulence-free exhaust gas flow. 

Made in the USA. Every raw material used from start to finish; molten metal to finished product, is certified to have been made in the USA. Every Killer B product includes a Limited Lifetime Warranty from Killer B.

View full details

Collapsible content

What's in the Box

Warranty Information

RalliTEK BRANDED PRODUCTS LIFETIME WARRANTY

RalliTEK branded products are warranted to the original owner against manufacturing defects in materials and workmanship for the lifetime of the product.

If a RalliTEK branded product covered by this warranty fails due to a manufacturing defect we will repair the product, without charge, or replace it at our discretion. This policy covers only original, unaltered, and unmodified materials and workmanship. This warranty does not cover damage caused by incorrect installation, accident, improper care, negligence, normal wear and tear, or the natural breakdown of colors and materials over extended time and use. Damage not covered under warranty may be repaired for a reasonable rate and a fee will be charged for return shipping.

No payment or reimbursement shall be made for installation, removal, transportation, or other charges. The remedies outlined in this instrument are exclusive and the liability of RalliTEK with respect to any sale shall not exceed the price of the product on which the liability is based.

For warranty evaluation, please contact RalliTEK Customer Service at (503) 619.0055 or info@rallitek.com to obtain a return authorization. Once this step has been completed, your product must be returned directly to the RalliTEK Warranty Department, 13339 NE Airport Way, Suite 500, Portland, OR 97230. All shipping to the Warranty Department must be pre-paid and insured. RalliTEK will not be liable for damaged or lost inbound packages.

      NOTE: This warranty is only available within the United States or Canada

  • This warranty gives you specific legal rights; you may have other rights, which vary from state to state.
  • This warranty does not cover products sold by RalliTEK that are not RalliTEK branded products.

The RalliTEK website sells discontinued, special markup, and slightly blemished products at significant discounts as 'factory seconds' products. This warranty does not automatically cover products purchased as factory seconds. RalliTEK reserves the right to determine if any warranty applies on a case-by-case basis for factory second parts. If approved, the RalliTEK Warranty Department may repair factory second products for a reasonable charge and applicable shipping charges.

MANUFACTURER WARRANTIES (FOR NON-RALLITEK BRANDED PRODUCTS)

Non-RalliTEK branded products do not have any written or implied warranties. Products on RalliTEK.com are sold with the warranty applied directly from the manufacturer. The customer must contact the product brand manufacturer for any warranty details. All products sold by RalliTEK are intended for off-road and/or race use only, as suggested by the manufacturer, and should be installed and set up by professional service centers only. RalliTEK is not responsible for any product failure or failure due to installation. Should a warranty claim arise, the customer and the manufacturer will handle all warranty issues directly.

There is no warranty on high-performance or race-related parts due to the nature of usage.

No payment or reimbursement shall be made for installation, removal, transportation, or other charges. The remedies outlined in this instrument are exclusive and the liability of RalliTEK with respect to any sale shall not exceed the price of the product on which the liability is based.

EXCEPT AS STATED OTHERWISE IN THIS WARRANTY, RalliTEK MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. RalliTEK shall not, in any case, be liable for special, incidental, consequential, indirect, or other similar damages arising from any breach of these warranties even if RalliTEK or its agent has been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you. This warranty is governed by the laws of the State of Oregon.

Installation Instructions

Applications

Subaru Impreza WRX Base - 2015
Subaru Impreza WRX Base - 2016
Subaru Impreza WRX Base - 2017
Subaru Impreza WRX Base - 2018
Subaru Impreza WRX Base - 2019