PRODUCT CATEGORY DEFINITIONS
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Intake Products
• Intake/Fuel/Exhaust Products (e.g. exhaust kits,
turbochargers, fuel pumps, etc.)
Handling Products
• Wheels & Tires (e.g. aluminum or alloy wheels,
off-road/plus-sized tires, performance tires, etc.)
• Suspension/Brakes Products (e.g. brake pads,
performance brakes, lift kits, etc.)
Engine/Drivetrain Products
• Engine Electrical and Ignition Products (e.g.
alternator, performance batteries, etc.)
• Internal Engine and Cooling Products (e.g. valve
covers, engine swap, radiator, etc.)
• Drivetrain Products (e.g. clutches, driveshaft,
performance transmission, etc.)
Safety Products
• Driver Assist Systems (e.g. backup camera, blind
spot monitoring, etc.)
• Safety Gear (e.g. roll cage, seat belts, etc.)
Accessory/Appearance Products
• Exterior Body Accessories (e.g. decals, window
tinting/lamination, body kit, etc.)
• Chemicals (e.g. performance oil, polish, etc.)
• Interior Products (e.g. seats, gauges, pedals,
etc.)
• Lighting Products (e.g. interior/exterior lighting,
etc.)
• Mobile Electronics (e.g. stereo, alarm, GPS)
• Exterior Utility Accessories (e.g. hitches, racks,
drop-in/spray-on bedliners, pickup caps, etc.)
Here are the products and accessories that went into the product categories used in this report.