Killer B Twin Scroll Header with Swain Coating for 2015 – 2021 Subaru WRX
Killer B Motorsports exhaust header engineered for the 2015+ WRX FA20 engine are a great upgrade for any enthusiast. Equal length design for the twin-scroll factory or factory equivalent turbo. Improves exhaust scavenging over the factory manifold increasing the engine’s ability to make power. Large radius mandrel bends ensure minimal flow resistance. Constructed of 321 stainless steel which maintains its strength to a higher temperature than the typical 304 stainless most companies use for cost reasons. Killer B Motorsports headers features the aircraft quality welds and fabrication and are engineered to provide the highest level of performance possible.
We also have them already coated (not in photo) with the infamous Swain ceramic coating to help with engine bay temperatures and to keep exhaust gas velocity as high as possible to increase horsepower!
**Very limited time offer and availability**
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