The RB26DETT specific D/R (direct replacement) turbochargers are the ideal choice for GTR's on stock or slightly modified applications. These responsive 42mm turbochargers fit with OEM manifolds, lines, and charge pipes while still being able to support 550-600BHP with plenty of torque available. Built around two Ceramic Ball Bearing CHRA's for extreme reliability in race conditions, careful design and sizing of the Compressor allows for extremely good response while avoiding compressor surge. On the turbine side, Spectrums own 9 blade, 68 trim RS turbine wheels provide exceptional respone and a broad powerband. Each set comes standard with 12-16PSI adjustable wastegate actuators and hand-ported wastegate port.