Cyber Monday Savings

20% OFF Extreme4 & Extreme3 Bypass Oil Filter Kits

Extreme3 is for engines with an oil capacity of 16-32qt and Extreme4 are for engines with an oil capacity of 32-64qt.

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10% to 20% OFF Extreme1 Bypass Oil Filter Kits

Extreme1 is for GAS and DIESEL engines with an oil capacity of 1-8qt.

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6% OFF Extreme2 Bypass Oil Filter Kits

Extreme2 is our most popular kit and designed for engines with an oil capacity of 8-16qt.

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15% OFF Filter Element Refills

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15% OFF Diesel Fuel Enhancement Additive

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15% OFF Oil Analysis Kits

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5% OFF Oil Cooler Upgrade

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20% OFF Maintenance/Accessory Bundle

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FREE USA Shipping On Any Complete Kit Over $350