Jeff K. doesn't just limit his tendencies to the classics. His daily drivers get the special treatment as well. Take his 2015 Mazda6, for example. Among the changes Jeff made was to install a K&N Performance Air Intake kit.

Daily Driver Maintenance with K&N Cold Air Intake

Learn what goes into setting the fuel for your engine and how to change the density altitude, ADR, main pill and high speed pressure to optimize a/f ratio.

Air Fuel Ratio Tuning on a Sprint Car Engine

Testing a 2 or 3 wire speed sensor sounds difficult, but these videos show that it actually is quite easy!

Testing 2 and 3 Wire Speed Sensors

The process on how to effectively winterize your fuel system in open wheel racing. This includes step by step instructions and recommended parts to use for your fuel system.

Winterizing Your Fuel System

Easily calculate the best axle ratio or tire size for your build. Use our axle ratio calculator to match RPM, gear ratio, and tire diameter for optimal performance.

Axle Ratio Calculator | Calculate Ideal Tire Size & Rear Gear Ratio

Here are some handy tips for finding the right fuel level gauge and sending unit for your classic car or truck.

How to Select the Correct Fuel Gauge and Sending Unit

Speedway Motors employee Pat O. takes some time to discuss the Fuel Gauge Interface Module that allows you to use any gauge set with almost any fuel level sending unit.

Speedway Tech Talk - Attach Stock Fuel Sender to any Gauge

Troubleshooting a fuel gauge can be a seriously aggravating issue. Click here for a video showing some hints and tips!

Troubleshooting a Fuel Gauge

Learn how to corner balance a car for optimal weight distribution and performance.

Race Car Weight Distribution & How to Corner Balance

How does a cooling system work? Why is your engine overheating? What parts should you be giving your attention to? This guide answers all your questions.

Car Cooling System Components

Engine Family Facets

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K And N Sport Compact Air Cleaner Gaskets And Seals

K And N Sport Compact Air Filter Cleaners

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K And N Sport Compact Air Filter Elements

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K&N Sport Compact Air- Fuel Ratio Sensors

K&N Sport Compact Air- Fuel Ratio Sensors | Speedway Motors

Shop K&N Sport Compact Air- Fuel Ratio Sensors and get Free Shipping on orders over $175 at Speedway Motors.

K&N Sport Compact Air- Fuel Ratio Sensors

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K&N 85-2444 Air Filter Service Indicator Minder, Screw-In, Each

K&N 85-2445 Air Filter Service Indicator Minder, Push-In, Each

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