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HKS 4501-RA002 Fuel Cut Defencer Electronic Boost Controller

(Subaru Impreza 2002-03; Toyota Celica 1988-93, Supra 1987-98, MR2 Spyder 1991-95, MR2 1991-95; Mazda Miata 1997-2005, MX-5 Miata 2006-15 + 4 more models)

Manufacturer

Picture for manufacturer HKS

Part Number

4501-RA002
20 reviews
Sale Price

$160.00

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The HKS Fuel Cut Defencer (FCD) is an electronic device engineered to raise the factory fuel cut level on turbocharged vehicles equipped with stock engine management systems. When performance modifications increase boost pressure beyond factory parameters, the OEM ECU activates a fuel delivery cut-off as a protective measure, resulting in hesitation, power loss, and illuminated check engine lights.

Key Features:

  • Modifies pressure sensor signal to prevent premature fuel cut activation
  • Allows higher boost levels without triggering ECU safety limiters
  • Compatible with factory ECU harness and HKS VPC/F-CON systems
  • Simple plug-and-play installation on most turbocharged applications
  • Eliminates hesitation and bogging caused by factory boost restrictions

Important: The FCD should only be used in conjunction with appropriate fuel system upgrades to maintain safe air/fuel ratios. Running higher boost levels without adequate fuel delivery can result in detonation and severe engine damage. Professional tuning and dyno testing are strongly recommended before using this device. This product is intended for racing and off-highway use only.

Products specifications

Fits

Subaru Impreza 2002-03; Toyota Celica 1988-93, Supra 1987-98, MR2 Spyder 1991-95, MR2 1991-95; Mazda Miata 1997-2005, MX-5 Miata 2006-15, RX-7 1986-95; Lexus SC300 1992-2000; Mitsubishi Starion 1983-87; Dodge Conquest 1983-87

Spec

Standard

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