Air and Fuel› Superchargers, Turbochargers and Components

KRATOS

KRAS55Bi-EVO Turbocharger Upgrade System

$7,895.00

SKU: KRAS55Bi-1

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The KRATOS KRAS55Bi-EVO is a turbocharger upgrade system designed for BMW S55 engines. It features a one-piece turbo-fold crafted from investment-cast 316 stainless steel for reduced heat and increased efficiency. The system utilizes proprietary ceramic ball bearing technology for enhanced reliability and transient response, offering five times the service life of steel bearings.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandKRATOS
Part NumberKRAS55Bi-1
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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