Grimmspeed Chase JB400 Turbocharger – 2004-2021 Subaru WRX STi & 02-07 WRX

$1,836.28

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Chase JB400 Turbocharger

The Chase JB400 Turbo is the smaller of our two offerings, however packs a big punch. This journal bearing unit is a perfect bolt-on to any stage 3 car, with which you are able to maximize the engine’s power potential with instant results through installation/tuning. The Chase JB400 features a robust 49lb compressor wheel, with a 53mm turbine wheel to offer quick response and power in the mid-range where you need it. The Chase Version was able to hit 440WHP and 460WTQ on The GrimmSpeed Stage 3-equipped 2020 STI with the addition of only tuning and fuel mods. The impressive bit is that the vehicle was able to hold over 400WTQ from 4150RPM, an RPM range where the stock turbo begins to lose power. Compared to a tuned stock turbo STI, the Chase 400 was able to produce 70 more horsepower and 66 more ft/lbs of torque (with room for more with additional mods!)

JB400 QUICK SPECS:
Compressor Wheel Size (Inducer/Exducer): 51.2mm / 73.8mm Extended tip, 48 Trim
Turbine Wheel Size (Inducer/Exducer): 53.8mm / 47mm, 76 Trim
Compressor Flow: 49 lb-min
Compressor Wheel Type Material/Alloy: Billet 2618
Compressor Housing Alloy: A356
Turbine Housing Alloy: D5S
Bearing Type: Journal
Severe duty 360-degree thrust bearing and twin hydrodynamic bearings –very robust for this size of turbocharger, to ensure reliability at high boost levels and in race applications
Dual-piston rings and advanced oil flinger design to combat oil leakage and CHRA pressurization
Compressor A/R: 0.65
Turbine A/R: 0.88
Adjustable Wastegate: Pre-set at 15Psi base pressure
KIT INCLUDES GASKETS, OIL/COOLANT LINES, AND FITTINGS

NOTE: Will fit 08-14 WRX, 09-13 FXT, and 05-09 LGT/OBXT with the correct modifications. Please contact [email protected] for more info!

Additional information

Weight8 kg
Dimensions34 × 28 × 25 cm

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Applications

Models suitable for this product

MakeModelYearSubmodel
MakeModelYearSubmodel
SubaruForester2004 - 20082.5XT
SubaruImpreza2002 - 2007WRX
SubaruImpreza2004 - 2014WRX STi
SubaruWRX2002 - 2007
SubaruWRX STi2004 - 2021

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