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Top Street Performance
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    • Air and Fuel Delivery
      • Air Filters
      • Fuel Filters
      • Fuel Injection
      • Intake Manifolds
      • Fuel Pumps and Regulators
      • Carburetors and Accessories
    • Chassis and Suspension
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      • Steering Components
      • Suspension Components
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      • Overflow Tanks and Catch Cans
      • Radiators
      • Thermostats Housings and Fillers
      • Water Pumps
    • Engine Components
      • Accessory Brackets
      • Belts and Pulleys
      • Camshafts and Valvetrain
      • Cylinder Heads
      • Harmonic Balancers
      • Oiling Systems
      • Valve Covers and Breathers
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      • Engine Gaskets and Seals
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      • Electrical Wiring
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Fuel Injection

Collection: Fuel Injection

Maximize engine performance and efficiency with our advanced fuel injection systems and components. Designed for precise fuel delivery and optimal combustion, our selection includes fuel injectors, rails, sensors, and throttle bodies to suit a variety of applications. Whether you're upgrading for better fuel economy, enhancing horsepower, or replacing worn parts, our fuel injection solutions ensure smooth operation and reliable performance. Trust our fuel injection components to keep your engine running at its best.

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  • TSP Chevy Big Block Aluminum Cylinder Head - High Performance Auto Part Velocity 92 mm 4-Bolt LS Throttle Body - Natural
    Velocity 92 mm 4-Bolt LS Throttle Body - Natural

    Velocity 92 mm 4-Bolt LS Throttle Body - Natural---

    Save $27.78

    Velocity 92 mm 4-Bolt LS Throttle Body - Natural

    SKU: 81042
    Regular price $203.70
    Sale price $203.70 Regular price $231.48
    Unit price /  per 
    Save $27.78
  • Close-up of TSP Chevy Big Block Aluminum Cylinder Head - Precision Engineering Velocity 92 mm 4-Bolt LS Throttle Body - Black
    Velocity 92 mm 4-Bolt LS Throttle Body - Black

    Velocity 92 mm 4-Bolt LS Throttle Body - Black---

    Save $27.78

    Velocity 92 mm 4-Bolt LS Throttle Body - Black

    SKU: 81042BK
    Regular price $203.70
    Sale price $203.70 Regular price $231.48
    Unit price /  per 
    Save $27.78
  • TSP Chevy Big Block Aluminum Cylinder Head - High Performance Auto Part Velocity 102 mm 4-Bolt LS Throttle Body - Natural
    Velocity 102 mm 4-Bolt LS Throttle Body - Natural

    Velocity 102 mm 4-Bolt LS Throttle Body - Natural---

    Save $27.78

    Velocity 102 mm 4-Bolt LS Throttle Body - Natural

    SKU: 81012
    Regular price $203.70
    Sale price $203.70 Regular price $231.48
    Unit price /  per 
    Save $27.78
  • Close-up of TSP Chevy Big Block Aluminum Cylinder Head - Precision Engineering Velocity 102 mm 4-Bolt LS Throttle Body - Black
    Velocity 102 mm 4-Bolt LS Throttle Body - Black

    Velocity 102 mm 4-Bolt LS Throttle Body - Black---

    Save $27.78

    Velocity 102 mm 4-Bolt LS Throttle Body - Black

    SKU: 81012BK
    Regular price $203.70
    Sale price $203.70 Regular price $231.48
    Unit price /  per 
    Save $27.78
  • TSP Chevy Big Block Aluminum Cylinder Head - High Performance Auto Part Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - 36lbs
    Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - 36lbs

    Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - 36lbs---

    Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - 36lbs

    SKU: 81050-36
    Regular price $293.33
    Sale price $293.33 Regular price $293.33
    Unit price /  per 
  • TSP Chevy Big Block Aluminum Cylinder Head - High Performance Auto Part Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - Flow Rate 52lbs
    Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - Flow Rate 52lbs

    Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - Flow Rate 52lbs---

    Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - Flow Rate 52lbs

    SKU: 81050-52
    Regular price $460.00
    Sale price $460.00 Regular price $460.00
    Unit price /  per 
  • TSP Chevy Big Block Aluminum Cylinder Head - High Performance Auto Part Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - Flow Rate 60lbs
    Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - Flow Rate 60lbs

    Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - Flow Rate 60lbs---

    Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - Flow Rate 60lbs

    SKU: 81050-60
    Regular price $426.67
    Sale price $426.67 Regular price $426.67
    Unit price /  per 
  • TSP Chevy Big Block Aluminum Cylinder Head - High Performance Auto Part Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - Flow Rate 80lbs
    Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - Flow Rate 80lbs

    Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - Flow Rate 80lbs---

    Velocity High-Flow Fuel Injectors for LS1, LS2, LS6, and 5.0L Coyote - Flow Rate 80lbs

    SKU: 81050-80
    Regular price $460.00
    Sale price $460.00 Regular price $460.00
    Unit price /  per 
  • TSP Chevy Big Block Aluminum Cylinder Head - High Performance Auto Part Velocity High-Flow Fuel Injectors for LS3 and LS7 - Flow Rate 52lbs
    Velocity High-Flow Fuel Injectors for LS3 and LS7 - Flow Rate 52lbs

    Velocity High-Flow Fuel Injectors for LS3 and LS7 - Flow Rate 52lbs---

    Velocity High-Flow Fuel Injectors for LS3 and LS7 - Flow Rate 52lbs

    SKU: 81051-52
    Regular price $426.67
    Sale price $426.67 Regular price $426.67
    Unit price /  per 
  • TSP Chevy Big Block Aluminum Cylinder Head - High Performance Auto Part Velocity High-Flow Fuel Injectors for LS3 and LS7 - Flow Rate 80lbs
    Velocity High-Flow Fuel Injectors for LS3 and LS7 - Flow Rate 80lbs

    Velocity High-Flow Fuel Injectors for LS3 and LS7 - Flow Rate 80lbs---

    Velocity High-Flow Fuel Injectors for LS3 and LS7 - Flow Rate 80lbs

    SKU: 81051-80
    Regular price $460.00
    Sale price $460.00 Regular price $460.00
    Unit price /  per 
  • TSP Chevy Big Block Aluminum Cylinder Head - High Performance Auto Part Velocity LS1/LS2/LS6 Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized
    Velocity LS1/LS2/LS6 Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized

    Velocity LS1/LS2/LS6 Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized---

    Save $24.07

    Velocity LS1/LS2/LS6 Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized

    SKU: 81008CA
    Regular price $176.53
    Sale price $176.53 Regular price $200.60
    Unit price /  per 
    Save $24.07
  • Close-up of TSP Chevy Big Block Aluminum Cylinder Head - Precision Engineering Velocity LS1/LS2/LS6 Billet Aluminum High Performance Fuel Rail Kit - Black
    Velocity LS1/LS2/LS6 Billet Aluminum High Performance Fuel Rail Kit - Black

    Velocity LS1/LS2/LS6 Billet Aluminum High Performance Fuel Rail Kit - Black---

    Save $24.07

    Velocity LS1/LS2/LS6 Billet Aluminum High Performance Fuel Rail Kit - Black

    SKU: 81008BK
    Regular price $176.53
    Sale price $176.53 Regular price $200.60
    Unit price /  per 
    Save $24.07
  • TSP Chevy Big Block Aluminum Cylinder Head - High Performance Auto Part Velocity LS3/L92 Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized
    Velocity LS3/L92 Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized

    Velocity LS3/L92 Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized---

    Save $24.07

    Velocity LS3/L92 Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized

    SKU: 81009CA
    Regular price $176.53
    Sale price $176.53 Regular price $200.60
    Unit price /  per 
    Save $24.07
  • Close-up of TSP Chevy Big Block Aluminum Cylinder Head - Precision Engineering Velocity LS3/L92 Billet Aluminum High Performance Fuel Rail Kit - Black
    Velocity LS3/L92 Billet Aluminum High Performance Fuel Rail Kit - Black

    Velocity LS3/L92 Billet Aluminum High Performance Fuel Rail Kit - Black---

    Save $24.07

    Velocity LS3/L92 Billet Aluminum High Performance Fuel Rail Kit - Black

    SKU: 81009BK
    Regular price $176.53
    Sale price $176.53 Regular price $200.60
    Unit price /  per 
    Save $24.07
  • TSP Chevy Big Block Aluminum Cylinder Head - High Performance Auto Part Velocity LS7 Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized
    Velocity LS7 Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized

    Velocity LS7 Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized---

    Sold out

    Velocity LS7 Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized

    SKU: 81011CA
    Regular price $176.53
    Sale price $176.53 Regular price $200.60
    Unit price /  per 
    Sold out
  • Close-up of TSP Chevy Big Block Aluminum Cylinder Head - Precision Engineering Velocity LS7 Billet Aluminum High Performance Fuel Rail Kit - Black
    Velocity LS7 Billet Aluminum High Performance Fuel Rail Kit - Black

    Velocity LS7 Billet Aluminum High Performance Fuel Rail Kit - Black---

    Save $24.07

    Velocity LS7 Billet Aluminum High Performance Fuel Rail Kit - Black

    SKU: 81011BK
    Regular price $176.53
    Sale price $176.53 Regular price $200.60
    Unit price /  per 
    Save $24.07
  • TSP Chevy Big Block Aluminum Cylinder Head - High Performance Auto Part Velocity OEM Style Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized
    Velocity OEM Style Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized

    Velocity OEM Style Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized---

    Save $24.07

    Velocity OEM Style Billet Aluminum High Performance Fuel Rail Kit - Clear Anodized

    SKU: 81010CA
    Regular price $176.53
    Sale price $176.53 Regular price $200.60
    Unit price /  per 
    Save $24.07
  • Close-up of TSP Chevy Big Block Aluminum Cylinder Head - Precision Engineering Velocity OEM Style Billet Aluminum High Performance Fuel Rail Kit - Black
    Velocity OEM Style Billet Aluminum High Performance Fuel Rail Kit - Black

    Velocity OEM Style Billet Aluminum High Performance Fuel Rail Kit - Black---

    Save $24.07

    Velocity OEM Style Billet Aluminum High Performance Fuel Rail Kit - Black

    SKU: 81010BK
    Regular price $176.53
    Sale price $176.53 Regular price $200.60
    Unit price /  per 
    Save $24.07
  • TSP Chevy Big Block Aluminum Cylinder Head - High Performance Auto Part Ford 5.0 L Coyote TSP Velocity Black Billet Aluminum Fuel Rails w/ Crossover Pipe
    Ford 5.0 L Coyote TSP Velocity Black Billet Aluminum Fuel Rails w/ Crossover Pipe

    Ford 5.0 L Coyote TSP Velocity Black Billet Aluminum Fuel Rails w/ Crossover Pipe---

    Save $23.83

    Ford 5.0 L Coyote TSP Velocity Black Billet Aluminum Fuel Rails w/ Crossover Pipe

    SKU: 84051BK
    Regular price $174.77
    Sale price $174.77 Regular price $198.60
    Unit price /  per 
    Save $23.83
  • TSP Chevy Big Block Aluminum Cylinder Head - High Performance Auto Part
    Velocity Rectangular Port Intake Fuel Rail Hardware Kit

    Velocity Rectangular Port Intake Fuel Rail Hardware Kit---

    Save $2.41

    Velocity Rectangular Port Intake Fuel Rail Hardware Kit

    SKU: 81709
    Regular price $17.64
    Sale price $17.64 Regular price $20.05
    Unit price /  per 
    Save $2.41
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