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What Does The Fass Fuel System Do To A 6.7L Cummins & How Much Does It Cost?
The FASS Fuel System makes some big promises on the impact it can have on a Cummins engine, but is the FASS really as effective as it claims to be?
The FASS Fuel System makes some big promises on the impact it can have on a Cummins engine, but is the FASS really as effective as it claims to be?
