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Synapse Radian 3-Port Manual Boost Controller for Honda Civic

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Synapse Radian 3-Port Manual Boost Controller Description

CARB Compliance / Exemption Warning: If you live in California and your application for this product is not CARB Compliant / Exempt, then you cannot purchase it for public highway or street use (in that case it could only be used for formally sanctioned race use on a racing vehicle that may never be used on a public highway or street). If your application is not CARB Compliant / Exempt and you're shipping to California, our system will let you know on the final checkout page.

The Synapse Radian MBC, or manual boost controller, is a premium unit designed to give you precise control of your boost pressures. The unique 3 port design allows users to not only use it on their wastegate, either external or internal, but also allows users to pair it with a Synchronic BOV or DV to leak boost when not needed.

When used with a Synapse Blow Off Valve, the Radian 3-Port boost controller can act as a boost fuse on turbocharged cars or as a Bypass Valve / Pressure Relief Valve on supercharged applications. Using the Radian controller in this manner allows you to either protect your engine from over-boost situations or make your centrifugal/roots supercharger more efficient and gain boost more quickly!

Key Features:
  • Adjustable ranges from 10 PSI up to 100 PSI!
  • Can be paired with a Synchronic valve to act as a boost fuse on turbo applications.
  • Can be used on supercharged applications to hit boost more quickly!
  • Individual Boost, Vent, and Wastegate Ports.
  • Proprietary Vent Port can be plumbed after the MAF Sensor to prevent a CEL.
  • Vent Port is serviceable (unlike other MBC's).
  • Threaded 1/8" NPT Ports for all pneumatic connections.
  • Includes basic installation fittings.
  • Available in different eye-catching colors.
  • Manufactured from premium aluminum and stainless steel materials to precision tolerances.
Tuning Note: As with any boost controller, if used to raise boost significantly (more than 2-3 PSI) we strongly recommend a full ECU re-tune for best performance and engine life.

Availability and Condition: Unless otherwise noted, this product is in brand new condition and usually in stock at one of our warehouses, or will ship directly from the manufacturer.


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Synapse Radian 3-Port Manual Boost Controller for 2011 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 2010 Honda Civic
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Synapse Radian 3-Port Manual Boost Controller for 2007 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 2006 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 2005 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 2004 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 2003 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 2002 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 2001 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 2000 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 1999 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 1998 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 1997 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 1996 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 1995 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 1994 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 1993 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 1992 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 1991 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 1990 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 1989 Honda Civic
Synapse Radian 3-Port Manual Boost Controller for 1988 Honda Civic


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