L.A. Sleeve [LAS]
http://www.lasleeve.com/
Performance engine sleeves and related components

Lakewood [LWI]
http://www.lakewood-industries.com/
Bellhousings, traction bars and safety equipment

Landrum Springs [LAN]
http://www.landrumspring.com/
Performance leaf springs and coil springs

Lizard Skin [LIZ]
http://www.lizardskin.com/
Ceramic Insulation and Heat Barrier Products

Logan Smith Machine Company [LSM]
http://www.lsmproducts.com/
Engine assembly tools

Lokar Motorsports [LOK]
http://www.lokarmotorsports.com/
Sport compact accessories

Lokar [LOK]
http://www.lokar.com/
Street rod/machine products

Longacre [LON]
http://www.longacreracing.com/
Automotive racing products

LSD Doors [LSD ]
www.kwautomotive.com
Lambo style door conversions

Lucas Oil Products [LUC]
http://www.lucasoil.com/
Performance lubricants

Lunati [LNT]
http://www.lunatipower.com/
Cranks and engine components

Lund Industries [LUN]
http://www.lundlook.com/
Hood shields, sunvisors, and hood scoops