The 2006-2011 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

including K-Swap applications

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* Needs to be installed to accomodate Invidia's Q300 dual exhaust system

We recommend using one of the following engines:

Mishimoto 63.5mm to 76mm Accoppiatore Red WHITE BLUE LETTERING The 2006-2011 Civic Si superchargerMishimoto has developed a 2. 5" to 3" Transition Coupler available in black, blue, red, purple, green and white. Length: 3" Thickness: 4mm ID: 2. 5" OD: 3. 0" ID: 2. 8" OD: 3. 4" 100% silicone construction Heat resistant embedded fibers High heat and pressure tolerances Mishimoto Lifetime Warranty Manufacturer Code MMCP 2530RD