Killer B Motorsport Twin Scroll EL FA20 WRX Traditional Header
Killer B Motorsport Twin Scroll EL FA20 WRX Traditional Header
Out of stock
Need this part?
This item is currently unavailable. Ask us about availability or help finding a suitable replacement.
Shipping & returns
This selection is unavailable. Ask us to confirm availability and timing.
Shipping details
In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
Read the shipping policyReturns
Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
Read the full return policyReturn details & how to start
Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.
Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.
Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.
After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.
Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.
For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
Specifications
Product details shared across all variants.
- Product type
- Exhaust Header
- Category
- Motor Vehicle Exhaust
- Item condition
- New
- Manufacturer type
- Aftermarket
- Shipping dimensions (L × W × H)
- Shipping weight
- 35.8 lb
Billable shipping weight; may include dimensional weight.
Twin Scroll 321 Stainless WRX FA20 Header
AddMORE POWER to your FA20 Turbocharged Subaru! The factory OEM manifold is designed as a cost-effective component whereas, the Killer B Motorsport Performance Header is designed with the goal of Maximizing Exhaust Gas Performance and Increasing Power. Equal Length Twin Scroll Design improves exhaust gas scavenging, increasing the engine's ability to make power. Available for the traditional OEM (or OEM style) turbocharger, or Dual External Wastegate version to deliver Maximum Performance Potential.
321 Stainless Steel offers 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 our header (further verified by independent testing - BrenTuning.)
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 smooth Turbulent-Free 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. We stand behind our products and include a Lifetime Warranty (We do not warranty wrapped headers.)
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013 - 2016 | Scion | FR-S | Base |
| 2015 | Subaru | BRZ | Aozora Edition, Series.Blue |
| 2013 - 2017 | Subaru | BRZ | Limited, Premium, Base, Sport-tech |
| 2016 | Subaru | BRZ | Series.HyperBlue |
| 2017 | Subaru | BRZ | Series.Yellow |
| 2018 - 2020 | Subaru | WRX | 6 Man, CVT |
| 2015 - 2020 | Subaru | WRX | Base, Premium, Limited |
| 2017 - 2020 | Subaru | WRX | Sport, Sport-tech |
| 2015 - 2016 | Subaru | WRX | STI |
| 2017 | Toyota | 86 | Special Edition, Base |
