PRODUCT DETAILS
Kraftwerks Supercharger Kit - 2006-2011 Honda Civic Si (K20Z3)
Want serious power from your 8th gen Civic Si without dealing with turbo lag? The Kraftwerks supercharger kit puts 380 horsepower and 240 lb-ft of torque on tap with a linear power curve that builds smoothly from idle to redline. This kit uses a Rotrex C30-94 supercharger with traction drive technology, which means instant throttle response and no power spikes or surging. You get boost as soon as you crack the throttle, and the power builds progressively all the way to redline. It drives like a naturally aspirated car with way more power, which is the whole point of a supercharger.
Rotrex C30-94 Supercharger
The Rotrex C30-94 uses a traction drive system instead of gears, so it runs quieter and more efficiently than traditional superchargers. It's compact, spins to high RPM without beating itself up, and stays cooler under load. The supercharger has its own self-contained oiling system, so you don't have to tap into your engine oil. This keeps the supercharger at the right temperature and reduces intake air temps, which lowers the risk of detonation and helps your engine stay reliable even when you're making big power.
Linear Power Curve
This kit gives you a smooth, linear power curve instead of the sharp spikes you get from some forced induction setups. Boost comes on early and builds progressively, so the car feels like a high revving naturally aspirated engine with way more torque. You don't get hit with a wall of boost that lights up the tires or upsets the chassis. The power is predictable and easy to manage, which makes the car faster and more fun to drive.
Complete Bolt-On Kit
Kraftwerks includes everything you need to install the supercharger on your 8th gen Civic Si. You get the Rotrex C30-94 supercharger, a high flow intake manifold, a front mount intercooler, all the piping and hardware, and all the mounting brackets. The kit is designed to work with your factory A/C and accessories, so you don't have to delete anything to make it fit. If you've got basic hand tools and a lift, you can install this kit yourself over a weekend.
Tuning Required
This kit does not include tuning. You need a Hondata FlashPro to tune your Civic Si after installing the supercharger. Kraftwerks provides a downloadable base tune for FlashPro users to get you started, but you should get a proper custom tune from a professional tuner to dial in your specific setup and make sure everything is safe. Do not just install the supercharger and drive the car without tuning it. You will blow your engine.
Upgraded Clutch Recommended
Your stock clutch probably won't hold 380 horsepower and 240 lb-ft of torque for very long. Plan on upgrading your clutch if you're installing this kit. A Competition Clutch Stage 2 or similar clutch should handle the power without slipping.
What You Get
- Rotrex C30-94 supercharger with self-contained oiling system
- High flow intake manifold
- Front mount intercooler
- All necessary piping, brackets, and hardware
- Retains factory A/C and accessories
- Downloadable FlashPro base tune
- Complete bolt-on installation
Performance Specs
- Up to 380 horsepower (with supporting mods like Skunk2 parts)
- Up to 240 lb-ft of torque
- Linear power curve with instant throttle response
- Lower intake temps for reduced detonation risk
- Smooth power delivery from idle to redline
Fits Your Car
- 2006-2011 Honda Civic Si (8th Gen, FG2/FA5, K20Z3 engine)
Requirements
- Hondata FlashPro (required for tuning, not included)
- Upgraded clutch (highly recommended, not included)
- Professional tuning after installation
Important: This kit does not include tuning. You must have a Hondata FlashPro and get a proper custom tune before driving the car with the supercharger installed. Running the supercharger without tuning will damage your engine. An upgraded clutch is also highly recommended to handle the power increase.