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To maximize the results on higher horsepower setups
We run NGK plugs in ALL of our builds at BCP from bolt-on Subarus to 1500 whp GTRs
The X400 will support 400whp while spooling within an incredible 100 rpm of the stock VF turbo
One of our best selling items
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BCP X400 WRX/STI Turbocharger 2015-2021 To maximize the results onThe X400 Turbocharger is the best mild stock turbo upgrade you can find for EJ power Subarus. Like the X500 turbos, we've combined an unparalled quick spooling turbo matched with high volume airflow. The X400 will support 400whp while spooling within an incredible 100 rpm of the stock VF turbo. With a stock inlet size, it truly is a bolt on unit. Turbo includes everything you need to install including our SureSeal multi layer gaskets to ensure leak
