FAST

FAST Throttle Body LS 102MM - 54104

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SKU:
FST54104
UPC:
00036584001638
MPN:
54104
Availability:
Regularly stocked product
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$735.95
Current Stock: 5

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Description

Will this throttle body fit my GM LS engine?
Confirm fitment using our vehicle selector to ensure perfect compatibility with your specific GM LS engine application for seamless integration.

Is this a difficult installation?
Experience a straightforward installation thanks to the plug-and-play design, allowing for significant airflow gains with factory-like idle stability.

FAST FST Throttle Bodies are engineered for GM LS engines, delivering a huge increase in airflow over stock for dramatic power gains. Featuring the Big Mouth 102mm Throttle Body(TM) design, these drive-by-wire units offer massive horsepower potential. Trust FAST for achieving peak engine performance with direct GM LS compatibility.

What Owners Say

Owners and enthusiasts frequently cite FAST throttle bodies as among the best available for reliability and ease of use, with many praising their solid build quality and responsive performance. Users report noticeable improvements in throttle response and airflow when upgrading to larger FAST units, particularly on LS-platform builds. Some tuners note that certain FAST models can be more challenging to dial in compared to competing brands, requiring patience during the initial calibration process. Despite this, the consensus remains strongly positive, with experienced builders consistently recommending FAST throttle bodies as a top-tier choice for serious engine upgrades where quality and performance are priorities.

Key Features

  • Big Mouth 102mm Throttle Body(TM) benefits
  • drive-by-wire applications
  • GM LS Engines
  • huge increase in airflow over stock
  • maintains stock characteristics at idle
  • plug-and-play for most stock Gen IV LS ECUs

Why Choose the FST Throttle Bodies

Unleash explosive acceleration with massive airflow gains over stock.

Experience seamless integration and factory-like idle stability.

Achieve peak engine performance with direct GM LS compatibility.

Enjoy effortless installation and immediate power gains.

Who Is This For?

Street Performance — 9/10
Huge airflow increase for dramatic power gains.

Engine Performance — 9/10
Huge airflow increase for dramatic power gains.

Track / Autocross — 8/10
Increased airflow supports higher performance demands.

Drag Racing — 8/10
Increased airflow supports higher performance demands.

Racing Competition — 8/10
Increased airflow supports higher performance demands.

Easy DIY Install — 7/10
Plug-and-play for most stock Gen IV LS ECUs.

Frequently Asked Questions

Will the FAST FST Big Mouth Throttle Body fit my GM LS engine?

Confirm vehicle fitment with your vehicle to ensure proper compatibility with GM LS Engines. This throttle body is designed for direct GM LS compatibility. You can confidently install it knowing it's engineered for your specific application.

How difficult is it to install the FAST FST Big Mouth Throttle Body?

Installation is straightforward due to its plug-and-play design, ideal for most stock Gen IV LS ECUs. This easy DIY install feature allows for a smooth upgrade process. Experience effortless installation and immediate power gains with this user-friendly component.

What are the performance advantages of upgrading to the FAST FST Big Mouth Throttle Body?

Achieve dramatic power gains with a huge increase in airflow over stock, scoring a 9 for Engine Performance. This massive airflow increase directly translates to explosive acceleration. Unleash peak engine performance with this significant upgrade.

How does the FAST FST Big Mouth Throttle Body maintain idle characteristics?

Maintains stock characteristics at idle, ensuring smooth operation and factory-like stability. This feature contributes to a score of 9 for Street Performance and Engine Performance. Enjoy seamless integration and factory-like idle stability with this advanced throttle body design.

Additional Resources

Official FAST Product Page

Important Notices

⚠️ CARB Notice: This product is NOT legal for street use in California under CARB (California Air Resources Board) regulations. For off-road or race use only.

⚠️ Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

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Additional Information

CARB:
This product is not CARB Legal and not for sale in California
Clearance Item:
N
MPN:
54104
Proposition 65:
Y
Case Lot Quantity:
1
Category:
Engine Components>Throttle Bodies
Universal Fitment:
Y
Install Type:
Plug and Play
Product Level:
Premium Performance
Street Performance:
9/10
Engine Performance:
9/10
Track / Autocross:
8/10
Drag Racing:
8/10
Racing Competition:
8/10
Easy DIY Install:
7/10
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