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Scion xB Engine Performance Parts

Upgrade Your 2004-2006 Scion xB Engine Performance Built for your 2004-2006 Scion xB, this collection offers a curated selection of engine performance parts designed to boost power, improve throttle response, and enhance overall reliability. Whether you're looking to increase horsepower, optimize airflow, or fine-tune your engine’s response, you'll find high-quality intakes, filters, headers, ignition upgrades, and tuning support tailored for your xB. Our collection is aimed at enthusiasts who want dependable, precision-fit upgrades that deliver real results on the street or track. From intake systems to fueling upgrades, each part is selected to help you get the most out of your engine while maintaining daily drivability. These upgrades are built to meet the demands of passionate owners who wrench and modify their vehicles for better performance and a more engaging driving experience. Explore our range of engine parts and upgrades to unlock your xB’s full potential. Shop engine performance upgrades for your xB at FastScions.

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568 Results

AEM 340LPH 65mm Fuel Pump Kit w/o Mounting Hooks - Ethanol Compatible
AEM 340LPH 65mm Fuel Pump Kit w/o Mounting Hooks - Ethanol Compatible
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AEM 340LPH 65mm Fuel Pump Kit w/o Mounting Hooks - Ethanol Compatible

AEM

Regular price $168.95 $149.95 11% off

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AEM High Volume Fuel Filter 10 Micron -6AN ORB: Fits Most Models
AEM High Volume Fuel Filter 10 Micron -6AN ORB: Fits Most Models
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AEM High Volume Fuel Filter 10 Micron -6AN ORB: Fits Most Models

AEM

Regular price $114.95 $101.95 11% off

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AEM Ignition Coil: Fits Most Scion xA/xB/tC/xD/iQ/iA/iM
AEM Ignition Coil: Fits Most Scion xA/xB/tC/xD/iQ/iA/iM
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AEM Ignition Coil: Fits Most Scion xA/xB/tC/xD/iQ/iA/iM

AEM

Regular price $51.83 $46.07 11% off

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AEM Ignition Coil: Fits Most Scion xA/xB/tC/xD/iQ/iA/iM Models
AEM Ignition Coil: Fits Most Scion xA/xB/tC/xD/iQ/iA/iM Models
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AEM Ignition Coil: Fits Most Scion xA/xB/tC/xD/iQ/iA/iM Models

AEM

Regular price $51.83 $46.07 11% off

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AEM Throttle Control Module: Multiple Subaru Fitments
AEM Throttle Control Module: Multiple Subaru Fitments
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AEM Throttle Control Module: Multiple Subaru Fitments

AEM

Regular price $312.95 $277.95 11% off

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AEM UEGO Replacement Wideband O2 Sensor Bosch LSU 4.2: Fits Most Models
AEM UEGO Replacement Wideband O2 Sensor Bosch LSU 4.2: Fits Most Models
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AEM UEGO Replacement Wideband O2 Sensor Bosch LSU 4.2: Fits Most Models

AEM

Regular price $128.95 $113.95 12% off

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AEM Water / Methanol Injection Kit V2 (up to 35psi) w/ 1 Gallon Tank Universal: Fits Most Models
AEM Water / Methanol Injection Kit V2 (up to 35psi) w/ 1 Gallon Tank Universal: Fits Most Models
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AEM Wideband O2 Sensor Bosch LSU 4.9: Fits Most Models
AEM Wideband O2 Sensor Bosch LSU 4.9: Fits Most Models
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AEM Wideband O2 Sensor Bosch LSU 4.9: Fits Most Models

AEM

Regular price $168.95 $149.95 11% off

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AFE Magnum FLOW Pro 5R Air Filter: Scion xA / xB 2004 - 2006
AFE Magnum FLOW Pro 5R Air Filter: Scion xA / xB 2004 - 2006
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Air Lift Performance Compressor Harness: Fits Most Models
Antigravity Batteries Bluetooth Battery Tracker Plus: Fits Most Models
Antigravity Batteries Bluetooth Battery Tracker Plus: Fits Most Models

Antigravity Batteries Bluetooth Battery Tracker Plus: Fits Most Models

Antigravity Batteries

$49.99

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Antigravity Batteries Lithium Car Battery: Fits Most Models
Antigravity Batteries Lithium Car Battery: Fits Most Models

Antigravity Batteries Lithium Car Battery: Fits Most Models

Antigravity Batteries

$449.99

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Upgrade Your 2004-2006 Scion xB with Performance Engine Parts for Maximum Power and Reliability

If you're looking to enhance your first-generation Scion xB's engine performance, this collection offers a carefully curated selection of high-quality parts. Designed to boost horsepower, improve throttle response, and ensure dependable operation, these upgrades are perfect for enthusiasts who want real results on the street or track. From intake systems to tuning support, find everything you need to unlock your xB’s full potential.

What are the benefits of engine performance parts for your Scion xB?

Upgrading your engine components can significantly improve your vehicle's power delivery, responsiveness, and overall reliability. Performance parts like intakes, headers, and ignition upgrades help your engine breathe better and run more efficiently, translating to a more engaging driving experience. These enhancements also support better fuel economy and long-term durability when paired with proper tuning and maintenance.

  • Increased horsepower and torque for more spirited driving
  • Enhanced throttle response and acceleration
  • Improved airflow and combustion efficiency
  • Better engine sound and tone

How do I choose the right intake and exhaust upgrades for my xB?

Selecting the proper intake and exhaust parts depends on your driving goals and daily use. Consider whether you want a louder, more aggressive sound or a quieter, more refined tone. Compatibility with other mods, material quality, and ease of installation are also key factors. Our collection features options designed for precise fitment on the 2004-2006 xB, ensuring reliable performance and straightforward upgrades.

What supporting modifications should I consider for optimal engine performance?

To maximize the benefits of your engine upgrades, consider supporting mods such as ECU tuning, upgraded fuel injectors, and cooling enhancements. Proper tuning ensures your engine runs efficiently and safely with increased airflow and fuel delivery. Additionally, upgrading your spark plugs and ignition system can improve combustion and responsiveness. Shop our collection at FastScions to find everything you need for a balanced, high-performance setup.

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