TRE - C105 intercooler core (C10.5)Treadstone intercooler cores feature highly efficient bar and plate core achieving efficiencys up to 80%. With a louvered external fin and staggard internal fin these cores will provide the best intercooling at a very efficient rate. Core size 3. 5" X 10. 5" X 24" 1000cfm, 666Hp less than 1 psi pressure drop Introducing for a limited time the C105 M! The M stands for mini, this core has smaller footprint than the standard C105, but supports over 500Hp