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Power is easy to make. Supplying enough fuel to support it is where the real engineering begins. As today's turbocharged BMW engines continue to push well beyond factory output, fuel delivery has beco … read more

A turbocharged engine is only as strong as the system supporting it. Air enters through the intake. It travels through the turbocharger. It's cooled by the intercooler. It moves through charge piping … read more

The savings aren't over yet! If you've been planning your next performance upgrade, there's still time to save. The Active Autowerke sale is still ongoing at Extreme Power House, giving enthusiasts an … read more

Every performance build starts with a goal. More power. Sharper response. A more engaging driving experience. Mastery of Art & Design—better known as MAD—builds products with those goa … read more

A performance build is never truly finished. An intake today becomes a turbo upgrade tomorrow. A downpipe leads to ethanol blends. A larger turbo calls for revised fueling and transmission tuning. The … read more