ATI Performance

Performance Unlimited Engineering are a UK distributor for ATI PERFORMANCE PRODUCTS, and supply their race engine components throughout the UK and beyond. 

ATI Performance Products: A company founded on innovation, precision and service. Parts distributed by Performance Unlimited UK. 

ATI manufacture a large range of high performance race engine parts including Competition Transmissions, Treemaster Converters, Torsional Super Dampers, Compu-Flow Valve Bodies, Flexplates, and Adapter Kits as well as a wide variety of performance enhancing internal components. Their commitment to racing has allowed the company to maintain a prominent position on the cutting edge of high performance component design and manufacturing.

ATI is a big player in all forms of motorsport, and performance street driven vehicles.  The company is the creation of over 40 years of transmission and performance component manufacturing and racing experience.

The company president and owner is  Jim Beattie. Jim left the Navy in the 60’s and opened a general transmission rebuilding shop that has grown into one of the largest suppliers of quality high performance transmissions, torque converters and driveline components in the industry. Jim competed  as a Sportsman drag racer in the ’60’s and as the owner and sponsor of the hugely popular original Black Magic Fuel Funny Car, a crowd favourite in the mid-70s.

Baltimore, Maryland, homes the corporate HQ is based. It also houses one of the most advanced machine shops in the race industry. Jim’s fascination with computer numerically controlled (CNC) machinery has produced a plant equipped with some of the finest CNC lathes, milling machines and machining centers available. Because these machines are driven by sophisticated computer systems, the tolerances and the uniformity of each fabricated part are completed to the highest standards.

ATI  have  maintained a close relationship with racers and racetracks, no matter what the class, bracket or size of the track. The company are sponsors of the NHRA, IHRA and ARCA.  Jim and all the staff have made a strong commitment to the sport of racing and the tradition of providing the finest performance parts in the industry.

Contact Performance Unlimited Engineering with your queries or to place an order. 

Please use the below catalogue to check what is available for your application.

Shells without hubs are available for those equipped to machine and fit as required.