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LIVE INVENTORY DISABLED: DELAYS FROM GLOBAL SUPPLY CHAIN ISSUES ARE OCCURRING - (CLICK HERE FOR MORE DETAILS)
LIVE INVENTORY DISABLED: DELAYS FROM GLOBAL SUPPLY CHAIN ISSUES ARE OCCURRING - (CLICK HERE FOR MORE DETAILS)

Grimmspeed OVERTAKE BB500 Turbocharger Kit 2002-2007 WRX / 2004-2021 STI

SKU 123006
Original price $1,650.00 - Original price $1,650.00
Original price
$1,650.00
$1,650.00 - $1,650.00
Current price $1,650.00

The GrimmSpeed Overtake BB500 turbocharger features world class power delivery and quick spool characteristics. It remains a stock location EJ turbo, but features a larger 55lb compressor wheel and massive 60mm turbine wheel to allow the engine to really breathe at high RPM. Just like with the Chase JB400, drivability was our #1 goal and by combining slick aero wheel designs with a dual ceramic ball bearing center housing rotating assembly, we were able to achieve superior spool results. This allowed us to hit 20PSI BEFORE 4100RPM and out-spool our well-performing Chase turbo by an impressive 150 RPM! When bolted onto our 2020 STI Shop Car, we were able to produce 488WHP and 515WTQ. However, the most impressive part is that the Overtake Turbocharger is able to hold 400WTQ+ from 4000RPM and hold over 400WHP from 4250RPM all the way to Redline! The design philosophy was to keep the turbo in its powerband after shifts and to hold substantially more power than the stock turbo to redline. The Overtake produced 129 horsepower and 109 ft/lbs of torque over a tuned stock STI turbo. This was all accomplished on a vehicle with only simple bolts-on, cars with additional engine work such as cams, intake manifolds, etc. will be able to produce even higher gains!

BB500 QUICK SPECS:

  • Compressor Wheel Size (Inducer/Exducer): 55.1mm / 74.6mm, 54 Trim
  • Turbine Wheel Size (Inducer/Exducer): 60mm / 55.1mm, 84 Trim
  • Compressor Flow: 55lb-min
  • Compressor Wheel Type Material/Alloy: Billet 2618
  • Compressor Housing Alloy: A356
  • Turbine Housing Alloy: D5S
  • Bearing Type: Ceramic Ball
    • Ceramic ball bearing design, featuring silver-plated 4340 bearing cages
    • Dual piston rings and advance 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

Customer Reviews

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Joshua Barrett
BB500 Overtake

Just got my 18 STI off the dyno today, the end result surpised me quite a bit! Final result managed to settle at 405hp running 93 pump gas on a dynojet… was a toss up between jc400 and bb500, went with the 500 and what a rowdy little car it became! Install was really not terrible, but if your going to do it yourself pre thread the water line a couple turns before setting the turbo in place. Lost 3/4 of the crush washers trying to get the lower banjo bolt in while the turbo was set in place. Luckily i have many local race shop that had the washers i needed to replace. Overall i am extremely pleased with my choice in using the bb500

Joshua,

The Grimmspeed OVERTAKE BB500 Turbocharger Kit is a perfect drop in turbo for the EJ Platform! It features a 60mm Turbine wheel rotating on ceramic ball bearings making for a quick smooth spool! It also features an adjustable waste gate for the perfect amount of boost! We appreciate the 5 Star Review! Enjoy the new found power!

Regards,