Katech was assigned to the Renault Le Car program to build an engine to deliver their performance power house. The engine received an overhaul, getting new pistons to lower the compression ratio to suit the higher boost and an overbore to reach a displacement of 1430 cc. This plus a few other changes produced 260 bhp at 7,000 rpm and increased the torque to 220 lb-ft at 4,500 rpm.
- 1982 – IMSA RS International Sedan – Manufacturer Championship
- 1984 – IMSA RS International Sedan – Manufacturer Championship