Crest CNC EJ20 Billet Case Halves Brakes BC uses small diameter grinding

BC uses small diameter grinding wheels during the finishing phase when applicable to generate a more aggressive ramp rate for a faster cylinder fill rate

Structure:

That's almost 1/3rd lbs

and AMS downpipe are all part of a complete system that will work seamlessly with the AMS Turbo kit without having to buy parts twice

Crest CNC EJ20 Billet Case Halves Brakes BC uses small diameter grindingThe CNC Billet Aluminum EJ case seeks to change the Subaru performance tuning market by reinventing the EJ and addressing virtually every weakness that exists in max power builds. The Crest CNC EJ Block, (Formerly Willall) is machined from 6061 T6 Aerospace Aluminum and features Darton Ductile Iron Sleeves. The block is designed with increased material thickness over the OEM cast aluminum case halves and adds a unique 4 bolt bottom end for additional