KRATOS BMW M3 / M4 / M2 Competition S55 Turbo Upgrade [No Core Required]

Engine Tuning Engine Tuning



The KRATOS S55 Bi Turbo Upgrade Kit! KRATOS S55 Ti COMING IN 2020!

The cornerstone of our S55 system is the one-piece turbo-fold. Combining both the manifolds and turbine housings, crafting the turbo-fold as one piece within the confines of stainless steel investment casting was a feat of engineering prowess.

  • Mathematically matched A/R ratio
  • Reduced heat and increased turbine efficiency
  • Smoother internal transitions due to redesigned runners
  • Computational Fluid Dynamics modeling software tested
  • 316 Stainless Steel

Ceramic Ball Bearing Technology

A distinctive feature of any KRATOS Turbo system is proprietary silicon nitride ceramic ball bearing technology. It offers efficiency and reliability unmatched by any other technology.

  • 5x the service life of steel ball bearings
  • Significantly lower temperatures than steel ball bearings – up to 50% higher operating speed
  • Increased efficiency and thrust load capability
  • Near frictionless operation requiring minimal oiling
  • Heightened transient response

KRATOS ceramic ball bearing cartridges have been engineered to withstand extreme forms of abuse. KRATOS bearing housings have been endurance race tested and have proven themselves to be reliable in the most extreme conditions. Designed to be fully rebuild able, KRATOS turbo systems are without equal in the industry.

Domestic Shipping Policy

All domestic orders will be shipped to the verified billing address associated with the customer’s credit card. In the event that the products need to be shipped to another address, Kies Motorsports will verify the transaction with the customer by requesting a screenshot of our transaction on the customers online banking. Similar to how PayPal verifies orders, Kies Motorsports has implemented an authorization program that will display a unique code on the credit card transaction next to where the “Kiesmotorsports” name appears.

International Customer Policy

To best serve International Customers, Kies Motorsports only accepts PayPal VERIFIED payments and PayPal VERIFIED addresses on international orders. For international shipping quotes, please email us at

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KRATOS BMW M3 / M4 / M2 Competition S55 Turbo Upgrade [No Core Required]
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