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TURTS-1-6870B-T4082E-Turbosmart 6870B (Kompact) T4 0.82AR Externally Wastegated TS-1 Turbocharger-Turbochargers-Turbosmart
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Turbosmart 6870B (Kompact) T4 0.82AR Externally Wastegated TS-1 Turbocharger

Turbosmart
TURTS-1-6870B-T4082E
9329677030945
Turbochargers
3 Units In Stock - Ships Next Business Day
$ 2,862.99 $ 2,576.69
$ 2,576.69

SKU: TS-1-6870B-T4082E | UPC: 9329677030945

Turbosmart 6870B (Kompact) T4 0.82AR Externally Wastegated TS-1 Turbocharger for 2004-2021 Subaru WRX STI, Nissan RB26, Toyota 2JZ

The Turbosmart 6870B Kompact TS-1 turbocharger features a T4 0.82 A/R divided housing with external wastegate port for precise boost control in high-performance builds. It fits custom manifolds on 2.0-3.0L engines including Subaru EJ25/257, Nissan RB25/26, and Toyota 2JZ-GTE. Expect fast spool-up under 4000 RPM and reliable power to 750hp with water/oil cooling.

Key Features

  • Dual Ceramic Ball Bearing CHRA: Reduces friction for 25% faster spool than journal bearing turbos with proven 200,000km durability in racing.
  • Billet 2618 Compressor Wheel 68/96mm: 50 trim inducer with extended tips flows 110+ lbs/min for massive top-end power without surge.
  • Inconel Turbine Wheel 70/62mm: 76 trim withstands 1050°C exhaust temps for track-proven heat resistance in 750hp applications.
  • T4 Divided 0.82 A/R Housing: V-band in/outlets balance low-end response and high RPM flow with external wastegate compatibility.
  • Water/Oil Cooled Center Housing: Ensures thermal stability and extends service life in daily driven or race setups.

Product Notes

  • Special order item, lead time may apply based on stock.
  • Requires compatible external wastegate like Turbosmart IWG75 for full function.
  • Securely packaged in reinforced box to prevent shipping damage.

Installation Notes

  • Professional installation recommended.
  • Custom T4 manifold required, V-band clamps included for turbine housing.
  • Oil feed line M12x1.25, drain M14x1.5, water ports M14x1.5 compatible with AN-4 fittings.

This Part Fits

Year Make Model Submodel
2004-2021 Subaru Impreza WRX STI (EJ257)
1989-2004 Nissan Skyline R32/R33/R34 GT-R (RB26DETT)
1993-1998 Toyota Supra JZA80 (2JZ-GTE)
1989-2002 Nissan Skyline R32/R33/R34 GTS-T (RB25DETT)
2002-2007 Subaru Impreza WRX (EJ255)

Why Choose Turbosmart?

  • Motorsport heritage from Australian WTAC champions and World Rally teams.
  • Precision CNC machined components for consistent dyno results.
  • Lifetime structural warranty on CHRA with proper installation.

Frequently Asked Questions

  • Q: Does this turbo bolt directly to stock manifolds on Subaru STI?
    A: No, requires aftermarket T4 flange manifold for EJ25 applications, common in 500+hp builds.
  • Q: What materials are used in construction?
    A: Billet 2618 aluminum compressor, Inconel turbine wheel and housing, Ni-Resist turbine housing for extreme heat cycles.
  • Q: What warranty coverage applies?
    A: Turbosmart offers 2-year unlimited mileage warranty, extendable to lifetime on CHRA with registered installation.

Shipping & Handling

  • Method: UPS Ground or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Reinforced double-wall box 20x18x16 inches
  • Weight: 32.2 lbs (14.6 kg)

Request For Information

Have questions about Turbosmart 6870B (Kompact) T4 0.82AR Externally Wastegated TS-1 Turbocharger? Fill out the form below and we'll get back to you by the next business day.
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