Total Racing Products FlexFuel Kit For ECUTEK – R35 GTRThe Total Racing Products FlexFuel Kit is the highest quality and easiest installing flex fuel kit on the market for a R35 GTR. Our kits fuel lines are assembled with PTFE hoses and EFI quick connect fittings that are assembled on the hoses with a hydraulically crimped collar. During the research and development phase of this product, we tested these hoses to hold over the maximum pressure our test manifolds can produce and read, 1,000psi. The flex