
ARP
VerifiedVentura, CAFounded 1968
ARP (Automotive Racing Products) has manufactured precision high-performance fasteners in Ventura and Santa Paula, California since 1968. Founded by Gary Holzapfel drawing on his aerospace fastener background, ARP controls the entire production process in-house across more than 200,000 square feet and seven Southern California facilities — forging, heat-treating, CNC machining, thread rolling, shot-peening, and metal finishing. ARP fasteners are standard equipment in Formula 1, NASCAR, IndyCar, NHRA drag racing, and street performance builds worldwide.


