Mazda Cosmo 20B turbocharger upgrades

BNR Supercars also offers a robust turbocharger upgrade for the Mazda Cosmo 20B 3 rotor engine.  We upgrade both units for reliability and performance.  The primary turbo is upgraded with a T3 stage 3 turbine wheel and the compressor wheel is upgraded to a T04B V trim.  The comrpessor housing and seal plate is machined to fit the larger compressor wheel.  The exhaust housing is machined for the upgraded turbine wheel and the wastegate is ported.  The secondary turbocharger is upgraded exactly like the stage 3's for the FD.  It has a GT28 that is fitted to the to the factory compressor and turbine housing.  Both units have a 360 thrust bearing and are both balanced to ensure a long lasting life.  The turbochargers are also covered by a 1 year warranty!  This is what you get when you get the BNR upgraded turbochargers:

• Upgraded primary turbocharger (V trim T04B compressor wheel/Stage3 T3 turbine)
• GT28 secondary turbocharger
• 360 thrust assemblies
• fully balanced
• ported wastegate
• adjustable wastegate actuator
• ported turbine housing inlets
• 1 year warranty
• 100% bolt up

Price:  $2000 plus rebuildable core.