Cusco
Cusco LSD RS 1.5-Way Front Limited Slip Differential — Fits 2004-2007 Subaru Impreza WRX STI
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Cusco LSD RS 1.5-Way Front Limited Slip Differential — Fits 2004-2007 Subaru Impreza WRX STI
Cusco

Cusco LSD RS 1.5-Way Front Limited Slip Differential — Fits 2004-2007 Subaru Impreza WRX STI

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SKU: CUSLSD 184 C15

About Cusco Cusco Japan engineers the strut-tower braces, sway bars, ...Read more

Price:
$1,387.50 $1,480.00
13870 ENTRIES10X
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

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About Cusco

Cusco Japan engineers the strut-tower braces, sway bars, alignment correction, and limited-slip differentials that power JDM and time-attack programs. The brand behind countless Time Attack and grassroots motorsport podiums.

Watch in action

Unlock Superior Traction with Cusco LSD RS

Experience precision handling and improved cornering with the Cusco LSD RS 1.5-Way Front Differential. Designed specifically for the high-performance demands of the Subaru Impreza WRX STI (2004-2007), this limited-slip differential is engineered to provide consistent power delivery during aggressive driving.

Technical Advantages

  • 1.5-Way Configuration: Offers a balance between acceleration traction and stability during deceleration.
  • RS Technology: Features coil springs for a smoother, more responsive engagement compared to traditional cone-clutch systems.
  • Durability: Precision-machined components designed to withstand the rigors of track days and spirited street driving.
  • Direct Fitment: Engineered specifically for GDB, GRB, and GVB chassis codes to ensure seamless installation.

Whether you are navigating tight hairpins or accelerating out of high-speed corners, the Cusco LSD RS minimizes wheel spin and maximizes power transfer to the pavement. This unit is the ultimate upgrade for enthusiasts looking to sharpen their vehicle's turn-in response and overall drivetrain efficiency. By replacing your factory open differential, you gain the confidence to push your STI to its limits. For all your high-performance drivetrain needs, trust the experts at GGCRACING.

About Cusco

Cusco Japan engineers the strut-tower braces, sway bars, alignment correction, and limited-slip differentials that power JDM and time-attack programs. The brand behind countless Time Attack and grassroots motorsport podiums.

Watch in action

Unlock Superior Traction with Cusco LSD RS

Experience precision handling and improved cornering with the Cusco LSD RS 1.5-Way Front Differential. Designed specifically for the high-performance demands of the Subaru Impreza WRX STI (2004-2007), this limited-slip differential is engineered to provide consistent power delivery during aggressive driving.

Technical Advantages

  • 1.5-Way Configuration: Offers a balance between acceleration traction and stability during deceleration.
  • RS Technology: Features coil springs for a smoother, more responsive engagement compared to traditional cone-clutch systems.
  • Durability: Precision-machined components designed to withstand the rigors of track days and spirited street driving.
  • Direct Fitment: Engineered specifically for GDB, GRB, and GVB chassis codes to ensure seamless installation.

Whether you are navigating tight hairpins or accelerating out of high-speed corners, the Cusco LSD RS minimizes wheel spin and maximizes power transfer to the pavement. This unit is the ultimate upgrade for enthusiasts looking to sharpen their vehicle's turn-in response and overall drivetrain efficiency. By replacing your factory open differential, you gain the confidence to push your STI to its limits. For all your high-performance drivetrain needs, trust the experts at GGCRACING.

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