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KraftWerks 12 Civic Si Supercharger Kit (Only Comes w/120mm Pulley - Must Order 110mm Separately)

  • Backed by real installs and tuning experience at FAST of West Chester
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$4,969.64
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Kraftwerks is pleased to introduce the newly redesigned supercharger system for the 2012-2015 Honda Civic Si. Centered around the highly efficient Rotrex C30-94 supercharger, the Kraftwerks 2012-2015 Honda Civic Si kit produces impressive results throughout the entire power band due to its patented traction drive technology. And, unlike any other forced induction system, the Kraftwerks supercharger system provides a linear power curve, torque on demand, cooler operating temperatures, and total driveability. The 2012-2015 Civic Si supercharger system provides instant throttle response and a progressive power curve that increases all the way to redline without the typical spiking or surging associated with turbochargers. This unique, more useable power curve results in reduced cylinder pressures, less strain on engine components, and increased reliability. Rotrex superchargers also operate much cooler when compared to turbochargers and other supercharger systems, which reduces the engine's intake air temperature as well as its risk of detonation. Rotrex superchargers are renowned for their compact size, high adiabatic efficiency, low vibration, and quiet operation. Their unique traction drive technology is what makes all of this possible, which, unlike other superchargers, transmits power through frictional forces between its rolling elements. Each Rotrex unit features its own self-contained oiling system that remains independent of the engine. Its dual-action oil pump supplies traction fluid to the supercharger while the supplied cooler ensures proper fluid temperatures at all times.

  • Incl. All Necessary Brackets/Hardware Simple Bolt On Installation
  • Centered Around The Highly Efficient Rotrex C30-94 Supercharger
  • High Quality CNC Machined Brackets/Idler Pulley And Tensioner
  • High Adiabatic Efficiency/Low Vibration And Quiet Operation
  • Kraftwerks Introduces Newly Redesigned Supercharger System
  • Cooler Operating Temperatures And Total Drivability
  • Provides Linear Power Curve And Torque On Demand
  • Dual Action Oil Pump Supplies Traction Fluid
  • Patented Traction Drive Technology
  • Self Contained Oiling System
  • Unique Drive Technology

This Part Fits:

Year Make Model Submodel
2012-2013 Honda Civic Si
  • Earn FAST points on this part!
  • Backed by real-world installs
  • FAST WC Team Approved
KraftWerks 12 Civic Si Supercharger Kit (Only Comes w/120mm Pulley - Must Order 110mm Separately)

$4,969.64

Why Drivers Choose FAST of West Chester

  • I can't recommend this place enough. Being able to trust a shop in the performance world is big. The 2hr drive to get there, is worth knowing the job will be done right. Very happy to have found this shop, to
    support my builds going forward.

    Donald Wojnar

  • I recently had the pleasure of working with FAST of West Chester for some performance upgrades on my 2022 WRX, and the experience was nothing short of exceptional. I opted for a Borla S-Type exhaust and Cygnus Coilovers, and the team at FAST nailed the installation, fitment, and setup to a T.

    Adam Cranston

  • The team at FAST are excellence in every way. First, I consulted with Dave on mods for my HPDE track car. He listened and advised me on the best parts & mods to achieve my goals. He was patient & gave me space to research the options presented & worked with me through several changes before we built. Second, the build execution was flawless, proper heat shielding, bracing and poly everywhere. All components worked as advertised.

    Bryce Budd

  • This place has been my go to shop for all things Subaru. From simple service to performance parts and tuning, they have been top notch.

    William Brunell

  • Excellent shop. They installed a Cobb Stage 2 DP and Whiteline Sway bars and end links on my 2013 WRX. The work was done right and clean. The estimate was accurate. They were very knowledgeable, friendly and gave me the straight scoop on exactly what I was getting for the money
    and what I needed to get where I want to be with it. I'd recommend them
    to any car enthusiast.

    Devin Greco

Does it come with a warranty?

Most products we carry include a manufacturer warranty. Since we work with top performance brands, warranty coverage can vary by product. If you have questions about a specific item, reach out — we’re happy to help.

Do you offer installation help or advice?

Yes — we don’t just sell parts, we install and tune them too. FAST of West Chester is a real performance shop, and we’ve worked hands-on with many of the products we carry. If you have questions about fitment, installs, or building your setup, our team can point you in the right direction.

How fast is shipping?

Many of our products ship the same day or next business day, depending on availability. We work hard to get parts out fast so you can get your build moving without delays.

What’s your return policy?

Returns for exchange or refund are accepted within 30 days of receiving your order. Items must be in new, unused condition and in original packaging. If you have any questions, our team will help make the process easy.

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