FAST Big Mouth Throttle Body 102MM — Fits LSX Intake Manifolds

SKU: FST54102
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Sale price$224.99
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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

Product Details

Product Description
Part Numbers
Sizing & Fit

About FAST

FAST engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FAST lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unleash Power with the FAST 102MM Big Mouth Throttle Body

When your engine build requires maximum airflow, the FAST Big Mouth 102MM Throttle Body is the ultimate solution. Designed to complement high-flow LSX intake manifolds, this unit features a larger bore to ensure your engine never starves for air. We have engineered this throttle body with a smoother offset blade pivot and increased blade thickness to eliminate the deflection issues common in lesser designs.

Technical Specifications and Benefits

  • 102MM Large Bore: Designed for high-horsepower, naturally aspirated, or forced induction builds.
  • Beefed-Up Linkage: Heavy-duty spring mechanism for consistent, snappy throttle return.
  • Increased Blade Thickness: Eliminates blade deflection for precise airflow control.
  • Improved Airflow Path: Smoother internal transitions to minimize turbulence.

The FAST 102MM throttle body is a must-have for any serious engine build. By increasing the intake diameter, you allow your engine to breathe much more efficiently at high RPMs, resulting in noticeable gains in power and torque. The improved linkage and spring mechanism provide a tactile, responsive feel that every driver appreciates. Whether you are competing on the track or building a high-performance street car, this throttle body is designed to handle the demands of high-output engines. GGCRACING is your trusted source for premium performance parts that deliver real-world results.

Product Details

Product Description
Part Numbers
Sizing & Fit

About FAST

FAST engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FAST lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unleash Power with the FAST 102MM Big Mouth Throttle Body

When your engine build requires maximum airflow, the FAST Big Mouth 102MM Throttle Body is the ultimate solution. Designed to complement high-flow LSX intake manifolds, this unit features a larger bore to ensure your engine never starves for air. We have engineered this throttle body with a smoother offset blade pivot and increased blade thickness to eliminate the deflection issues common in lesser designs.

Technical Specifications and Benefits

  • 102MM Large Bore: Designed for high-horsepower, naturally aspirated, or forced induction builds.
  • Beefed-Up Linkage: Heavy-duty spring mechanism for consistent, snappy throttle return.
  • Increased Blade Thickness: Eliminates blade deflection for precise airflow control.
  • Improved Airflow Path: Smoother internal transitions to minimize turbulence.

The FAST 102MM throttle body is a must-have for any serious engine build. By increasing the intake diameter, you allow your engine to breathe much more efficiently at high RPMs, resulting in noticeable gains in power and torque. The improved linkage and spring mechanism provide a tactile, responsive feel that every driver appreciates. Whether you are competing on the track or building a high-performance street car, this throttle body is designed to handle the demands of high-output engines. GGCRACING is your trusted source for premium performance parts that deliver real-world results.

Product Details

Product Description

About FAST

FAST engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FAST lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unleash Power with the FAST 102MM Big Mouth Throttle Body

When your engine build requires maximum airflow, the FAST Big Mouth 102MM Throttle Body is the ultimate solution. Designed to complement high-flow LSX intake manifolds, this unit features a larger bore to ensure your engine never starves for air. We have engineered this throttle body with a smoother offset blade pivot and increased blade thickness to eliminate the deflection issues common in lesser designs.

Technical Specifications and Benefits

  • 102MM Large Bore: Designed for high-horsepower, naturally aspirated, or forced induction builds.
  • Beefed-Up Linkage: Heavy-duty spring mechanism for consistent, snappy throttle return.
  • Increased Blade Thickness: Eliminates blade deflection for precise airflow control.
  • Improved Airflow Path: Smoother internal transitions to minimize turbulence.

The FAST 102MM throttle body is a must-have for any serious engine build. By increasing the intake diameter, you allow your engine to breathe much more efficiently at high RPMs, resulting in noticeable gains in power and torque. The improved linkage and spring mechanism provide a tactile, responsive feel that every driver appreciates. Whether you are competing on the track or building a high-performance street car, this throttle body is designed to handle the demands of high-output engines. GGCRACING is your trusted source for premium performance parts that deliver real-world results.

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