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The oil can coat the internal components of the intake
Real world results could be better or worse than what is shown above
2mm 2006-2014 Subaru WRX 2004+ Subaru STI
bolts and nuts
COBB Tuning Front Mount Intercooler Core Silver - 2015-2021 Subaru WRX/STI Honda-Civic-Type-R-2021 The oil can coat theThe Inlet: Where Factory Plastic Costs You Power The factory turbo inlet on the VA STI is a known restriction a plastic piece designed around packaging constraints rather than airflow efficiency. The Cobb Tubo Inlet replaces it with a larger diameter unit designed to feed the turbocharger more freely. Less restriction at the inlet means the turbocharger can build boost from a stronger air supply, improving response and reducing heat generating
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