The 5350 GFB to HKS adaptor allows GFB’s diverter/blow off valves to be mounted onto an HKS style mounting flange.
Only suits part numbers;
T9007, T9107, T9507
T9020, T9120, T9520
T9025, T9125, T9525
T9033, T9133, T9533
T9035, T9135, T9535