EXTREME ENGINE PROTECTION

Insane Diesel
Bypass Oil Filter Systems

Vehicle-specific and universal bypass oil filter kits for diesel and gas engines from pickups and OTR trucks to RVs, and heavy-duty equipment.
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4.96★ from hundreds of verified reviews

Vehicle-specific and universal options

Fitment and installation support

Complete Engine Protection Goes Beyond Filtration

The Insane Diesel Performance Protection System combines Extreme bypass oil filtration, Lorenzo’s Oil™ Engine Oil with TS2 Guard™, and Lorenzo’s Oil™ Fuel Additive. Each part has a specific job. The bypass filter keeps engine oil cleaner, the engine oil reduces friction and protects critical surfaces, and the fuel additive helps improve combustion and keep the fuel system clean.

Bypass Oil Filters

Progressive filtration down to 1 micron removes fine contaminants, soot, and moisture from engine oil.

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Engine Oil

Advanced engine oil with TS2 Guard™ helps reduce friction and protect critical engine surfaces under demanding operating conditions.

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Fuel Additive

Helps improve combustion, maintain injector cleanliness, increase fuel lubricity, and support more efficient fuel use.

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Find The Right Bypass Oil Filter Kit

Start with your vehicle, engine, or application. Choose a vehicle-specific kit when available, or explore our universal systems for custom installations and applications that are not listed.

Bypass Oil Filter Kits
Shop by Vehicle / Engine Brand
Gas Engine Kits
Gas Engine Kits
OTR, RV & Heavy-Duty Bypass Oil Filter Kits
Over The Road
And RV's
Polaris Bypass Oil Filter Kits
Polaris RZR Kits
Universal Base Bypass Oil Filter Kits
Build a Universal Kit

How Extreme Bypass Oil Filtration Works

Your factory full-flow oil filter remains in place. The Extreme system continuously routes a small amount of oil through three progressively finer filtration stages, then returns the cleaned oil to the engine.

Oil Enters the Bypass System
A controlled amount of engine oil is routed through the Extreme filtration system.

Progressive 3-Stage Filtration
Oil passes through 10-, 3-, and 1-micron filtration stages that capture progressively finer contamination.

Cleaned Oil Returns to the Engine
The filtered oil returns to the engine while the system also increases total oil capacity.
See How Bypass Filtration Works

Real Engine Protection You Can See

See inside a 900,000-mile 6.7L Power Stroke that used the complete Insane Diesel Performance Protection System, including

• Extreme bypass oil filtration
• Lorenzo’s Oil™ Engine Oil with TS2 Guard™
• Lorenzo’s Oil™ Fuel Additive.
Watch the 900,000-Mile Engine Teardown

Support Before and After Installation

Not sure which kit fits or how your installation will work? Our team can help you select the right system, understand your installation options, and find the instructions for your application.

Call (801) 901-0667

What Customers Are Saying

4.96 ★ (198)
Verified

Filter Refills and Upgrades

Filter Element Refills
Filter Element Refills
Lorenzo's Oil™ Fuel Additive
Lorenzo's Oil™ Fuel Additive
Engine Oil - Insane Diesel
Lorenzo’s Oil™ Engine Oil | Diesel & Gas Protection
Oil Analysis and Sampling Tools
Oil Analysis & Sampling Tools
Oil Cooler Upgrade

Engine Protection Knowledge Center

View all
900,000-Mile Engine Results: The 3 Products That Made It Last!
900,000-Mile Engine Results: The 3 Products That Made It Last!
The Rise of Bypass Oil Filtration and Oil Analysis in Heavy Industries
The Rise of Bypass Oil Filtration and Oil Analysis in Heavy Industries
Oil Moisture Removal with Extreme Bypass Oil Filtration Systems
Oil Moisture Removal with Extreme Bypass Oil Filtration Systems