The factory turbocharger on the K20C1 is highly capable, but as you increase boost pressures with aggressive software tuning, thermal management and boost holding become critical. Swap out the failure-prone factory diverter for an uprated turbo dump valves (diverter valves) unit to ensure your engine holds maximum pressure securely without leaking. To drastically reduce under-bonnet temperatures and improve turbo spool times, wrap your exhaust housing in highly efficient turbo blankets. You can also browse our Misc turbo parts for the essential hardware, lines, and fittings needed for a reliable forced induction setup.