I used a GT series oil return flange from ATP Turbo (www.atpturbo.com) and a 1/2" 45* NPT Russell Adapter from Summit Racing (www.summitracing.com). The 45* is necessary so you don't kink the return line. Fit perfect with that setup.slo-3dr wrote:just picked up a 1990 240sx with a ca18 and a gt28rs. I need an oil return line, anyone know where I can get one? Also how much power should this setup make, the car also has a z32 MAF, DSM injectors, and a JWT ECU?