Home   About Us   Dyno Tuners   Fabrication   Race Car Prep   Speed Shop   Contact Us   Products

THR Developments and HARROP ENGINEERING THR is now an approved agent for HARROP ENGINEERING. a combination which delivers intelligent and affordable engineering solutions by the use of our state of the art manufacturing facility and three generations of engineering and professional expertise. THR Developments isn't your average mechanical workshop. Built around a racing type format, both the company's services and employee's are motor racing related. Contact Us: THR Developments Address  Cnr South Tce & Wingfield Road Wingfield SA 5013 Postal Address  PO BOX 516 Pt. Adelaide Business Ctr. PORT ADELAIDE SA 5015 Phone  08 8243 2900 Fax  08 8243 2977 Email  thrdevelopments@bigpond.com Please Check Our   Privacy Policy Content Managed Interactive Web Site by Web Whisperer. Motorsport, Performance, Customisation, automotive repairs, Gen3, Holden, Ford, FPV, HSV, Engine rebuilding, Exhausts, supercharging, turbocharging, Restorations, Dyno tuning, Nitros, Racecar, Brake upgrades, Harrop, Diffs, Gearbox, Earls, Electrical, Suspension, Coilover kits, Holley, speedshop, clutches, engineering, fabrication, coolers, pedal boxes, manifolds, webers.