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BorgWarner Turbocharger SX K03 Mini Cooper S EP6 HP Upgrade - Black Ops Auto Works
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BorgWarner Turbocharger SX K03 Mini Cooper S EP6 HP Upgrade

BorgWarner
BWA53039880146
4063984016142
Turbochargers
10 Units In Stock - Ships Next Business Day
$ 3,059.57 $ 2,091.83
$ 2,091.83

SKU: 53039880146 | UPC: 4063984016142

BorgWarner Turbocharger SX K03 Mini Cooper S EP6 HP Upgrade 2007-2013

The BorgWarner SX K03 turbocharger delivers a direct bolt-on performance upgrade for Mini Cooper S models equipped with the EP6 1.6L engine. Designed for 2007-2013 R56, R57, and R58 vehicles, it boosts horsepower to 300+ while maintaining stock-like spool times. Enthusiasts gain reliable power increases through enhanced airflow and durability.

Key Features

  • Billet Compressor Wheel: 54mm inducer milled from forged billet steel supports 20% more airflow for 300-340HP potential at 1.5-1.8 bar boost
  • Dual Ball Bearing CHRA: Ceramic bearings enable faster spool under 3800 RPM for immediate throttle response
  • Gamma-Ti Turbine Wheel: Lightweight titanium alloy withstands high exhaust temperatures up to 1050C for sustained performance
  • Direct Bolt-On Design: Matches OEM K03 footprint and flanges for easy installation without manifold or piping changes
  • Oil and Water Cooled: Integrated cooling provisions ensure longevity in street and track conditions

Product Notes

  • ECU remap required to achieve full power gains and safe boost levels
  • Use high-quality synthetic oil and inspect lines during install
  • Special order item with standard ground shipping

Installation Notes

  • Professional installation recommended.
  • Replace turbo seals and gaskets during swap for leak-free operation
  • Bolts directly to stock exhaust manifold and downpipe hardware

This Part Fits

Year Make Model Submodel
2007-2013 MINI Cooper S Hatchback R56 EP6
2009-2015 MINI Cooper S Convertible R57 EP6
2011-2015 MINI Cooper S Coupe R58 EP6
2007-2013 MINI Cooper S John Cooper Works EP6CDTM

Why Choose BorgWarner?

  • Original equipment supplier to BMW Group for millions of vehicles worldwide
  • Engineered with OE-grade materials for daily driver reliability
  • Backed by precision German manufacturing standards

Frequently Asked Questions

  • Q: Will this fit my 2010 Mini Cooper S R56?
    A: Yes, it directly replaces the stock K03 on all EP6-equipped 2007-2013 R56 Cooper S models including base and JCW variants
  • Q: What compressor and turbine sizes are used?
    A: 54/71mm billet compressor and 45/60mm Gamma-Ti turbine for balanced flow and response
  • Q: What warranty applies?
    A: 12-month unlimited mileage warranty when installed by certified shop with proper tuning

Shipping & Handling

  • Method: Standard ground freight
  • Availability: Special order - ships within 3-5 business days
  • Packaging: Foam-protected box measuring 16 x 16 x 16 inches
  • Weight: 17.6 lbs

Request For Information

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