Stock and BMC Panel Filters

Making a case for the Mann Air Filter

Background: A recent comparison of the modified GTI intake versus aftermarket showed that the GTI intake performs similarly at the 500 whp level with a hybrid-turbocharger. My modifications to the GTI intake include using a BMC panel air filter. I wondered how well a stock air filter would perform instead of the BMC. I obtained […]

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Mk7 Golf R and APR Intercoolers

Intercooler Volume Comparison

Background: Often, when discussing different intercooler options, one of the attributes that comes up is the volume. This property consists of the core dimensions; the length multiplied by the height multiplied by the depth gives the core volume. Concerning the quantity of charge air contained within the intercooler at any moment, this volume representation is

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