Not all fuel system “upgrades” are created equal…
May 16, 2025

Here at FASS, diesel fuel systems are what we do—not a side project. Since 2003, our engineering and manufacturing teams have been solely focused on designing and building the most effective diesel fuel system upgrades on the market—period.


However, the same cannot be said for other diesel parts manufacturers. In many cases, diesel fuel system “upgrades” seem to be just an add-on for their catalog.


More than we’d like to think about, companies release diesel fuel system products that miss the mark in terms of design, filtration effectiveness, and overall quality.

And if you’re thinking “of course FASS doesn’t like their competitors products”—that’s a fair assumption. However, we pride ourselves on honesty.


For years, we had no problem recommending CAT or Baldwin filters, as they were just as effective as ours. But, as we developed filtration technology that surpassed those aforementioned brands, the conversation changed.


Speaking of honesty—we have 3rd party tested our filters against many of the most popular brands on the market. The un-edited, un-doctored results are available right here on our website.


If you have questions about a FASS Diesel Fuel System for your diesel truck, contact us today!


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