Forced Performance FP RED Turbocharger - 2002-2007 Subaru WRX / 2004-2021 Subaru STI PDM_ornaments-and-emblems HKS has introduced the "Silent

HKS has introduced the "Silent Chamber" which removes a lot of the lower frequency noise that can often be heard into the cabin even when cruising

Conclusion:

HPS Ferro-Compound Features:

NOTE: Subaru has increased the clutch component sizes

Forced Performance FP RED Turbocharger - 2002-2007 Subaru WRX / 2004-2021 Subaru STI PDM_ornaments-and-emblems HKS has introduced the "SilentHIGHLIGHTS: Makes the same power as the prior gen FP red with a faster boost response Rated for 475 500 WHP with supporting modifications Direct bolt on upgrade Forced Performance FP RED Turbocharger SPECS: Compressor wheel: HTZ 79 Flow rating: 65lb per minute CW measurements: 57. 3mm inducer 79mm exducer TW measurements: 67. 3mm inducer 58. 8mm exducer Compressor housing: 84mm FAP cover Turbine housing: FP 8cm or 10cm turbine housing CHRA: FP journal