Air and Fuel Superchargers, Turbochargers and Components

KraftWerks

KraftWerks Honda K-Series Race Supercharger Kit (C38-81 Note Pulley Size on PO/Drop Ship Only)

$3,199.34

SKU: K00B 150-05-0038K-81

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

Part #: 150-05-0038K-81

MIA's Description

The Kraftwerks K-Series Race Supercharger Kit (C38-81) is a high-performance forced induction system built around the Rotrex C38-91 or C38-92 supercharger. It provides significant, linear power gains with instant throttle response and cooler operating temperatures compared to turbochargers. The kit mounts on Honda K-Series engines in place of the A/C compressor. It includes the C38 Rotrex Head Unit, supercharger pulley, billet mounting brackets, oil cooler, oil reservoir, magnetic oil filter, Rotrex oil, AIT sensor bung, high-quality metric fasteners, hardware, and an installation manual. Custom fabrication for intercooler and piping, engine tuning, and removal of the A/C compressor are required.

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

BrandKraftWerks
Part NumberK00B 150-05-0038K-81

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.

View Full Return Policy