Gen2.1 6.7L Power Stroke CP4.2 Bypass Kit Billet Filter Head Upgrade with Filter Late They modified the compressor housing

They modified the compressor housing to fit their upgraded 68mm compressor wheel

This is a rebuild service that you have to send your injectors in to be rebuilt and you get back the same injectors you sent in to be rebuilt

Stock Like Spooling

250 mm3 per revolution (25% more than a CP4

7L Power Stroke that matches the CP4 output curve and does not require any calibration changes

Gen2.1 6.7L Power Stroke CP4.2 Bypass Kit Billet Filter Head Upgrade with Filter Late They modified the compressor housingThe new Gen2. 1 return filter head uses the same quick connect fittings and mounting hardware as the previous Gen2 filter, which allows for an easy retrofit. S&S customers who already own a Gen2 CP4 Bypass Kit can purchase the Gen2. 1 Filter Head Upgrade (CP4 6. 7F BP G2. 1 FHU) to update their kit to the Gen2. 1 spec.