TSP Gen IV & Gen V DOD Oil Block Off Plugs - Set of 8

This only blocks off the oil supply to activate the DOD lifters, you still have to remove the DOD lifters for a set of non DOD lifters, change the cam, and re-tune the vehicle. -Complete set of 8 -For Gen 4 LS & Gen 5 LT Please note: Computer tuning IS required to complete this modification. You must have DOD/AFM disabled in the PCM to prevent the Engine Control Module from setting DTC Codes.