GrimmSpeed OVERTAKE BB500 Turbocharger Kit - 2002-2014 Subaru WRX / 2004-2021 STI / 2005-2009 Legacy GT / Outback XT

GrimmSpeed OVERTAKE BB500 Turbocharger: Turbocharged Excellence

This is GrimmSpeed's new OVERTAKE BB500 Turbocharger and it is another powerful turbocharger designed by Chase Trogan who is a senior engineer at GrimmSpeed. The Overtake Ball-Bearing 500-Series Turbocharger takes the same formula as the GrimmSpeed CHASE JB400, but improves on the design with a faster spool, and increased airflow. This turbocharger features a larger 55lb compressor wheel, along with a massive 60mm turbine wheel. This will allow the engine to breathe easier at higher RPMs. By combining slick aero wheel designs and a dual ceramic ball-bearing center cartridge, GrimmSpeed was able to achieve a quicker spool when compared to the CHASE JB400 turbocharger by 150 RPMs.

Unmatched Performance and Power Retention:

The OVERTAKE BB500 will stay in the powerband after shifts and holds substantially more power when compared to the stock turbocharger to redline. It produces +129 horsepower and 109 ft/lbs of torque than a tuned stock STI turbocharger when research and testing had been performed on GrimmSpeed's STI on E85 with simple tuning and fuel modifications. Vehicles with cams, a built engine, and other major modifications will certainly see larger gains. This turbocharger is very competitively priced in the market when compared to other turbochargers in the same size and power category, and it is a direct mount fitment.

HIGHLIGHTS:

• Compressor Wheel Size (Inducer / Exducer): 55.1mm / 74.6mm with a 54 trim
• Turbine Wheel Size (Inducer / Exducer): 60mm / 55.1mm, 84 trim
• Compressor Flow: 55 lb/min
• Compressor Wheel Construction: Billet 2618 alloy
• Compressor Housing Construction: A356 alloy
• Turbine Housing Construction: D5S alloy
• Bearing Type: Ceramic ball-bearing design featuring silver-plated 4340 bearing cages
• Compressor A/R: 0.65
• Turbine A/R: 0.88
• Very robust and reliable at high boost levels and in race applications
• Dual-piston rings and advanced oil flinger design to combat oil leakage and CHRA pressurization
• Wastegate actuator will come pre-set to 15 psi
• This turbocharger was able to produce 440 WHP and 460 WTQ on GrimmSpeed's Stage 3 2020 STI with tuning and fuel upgrades
• Ideal for daily drivers that demand more power
• Durable enough for track-dedicated race cars
• Will include new gaskets, fluid lines, and hardware for the installation

RallySport Direct proudly carries a great selection of quality performance upgrades by our friends over at GrimmSpeed.

FITMENTS:

• 04-21 Subaru STI
• 02-07 Subaru WRX [Other modifications required]
• 04-08 Subaru FXT/Baja [Other modifications required]
• 08-14 Subaru WRX/FXT [Equipped with GrimmSpeed Intercooler, STI-Style Conversion Hose, etc]
• 05-09 Subaru LGT/OBXT [Equipped with GrimmSpeed Intercooler, STI-Style Conversion Hose, etc]