Zerosports Twin Scroll High Performance Turbo A/R25 Subaru Impreza GC8 98-01

Twin Scroll High Performance Turbo A/R25 Features:
-As opposed to the single exhaust entry turbine housing on the previous GDB model, the newer GDB STi models have a twin-entry (twin scroll) design, created for smoother exhaust gas entry to the turbine housing, removing the interference caused by the motors naturally alternating exhaust pulses.
-The Zero/Sports A/R25 Turbo allows for improved torque response through low and mid ranges.
-The Turbo spool is drastically improved by the use of a a ball bearing design and a 70mm compressor wheel that easily supports 400+ horsepower and consistent power throughout the entire RPM range.

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