This is the largest Duramax S400 turbo oil drain on the market! Todays high RPM diesels produce more oil volume and pressure then ever before. Having a free flowing low pressure exit for oil is crucial to turbo longevity. Nearly all high performance turbo manufacturers agree, the larger the drain, the less likely a turbo seal leak will develop.
This setup is designed specifically to work on all 2001-2019 Duramax's.
Features:
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