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Scion xA Engine Performance Parts

Upgrade Your 2004-2006 Scion xA Engine Performance

Designed specifically for your 2004-2006 Scion xA, our collection of engine performance parts helps you unlock smoother acceleration, improved throttle response, and increased reliability. Whether you're aiming for more power on the street or better efficiency during daily driving, these curated upgrades are built to enhance your vehicle’s engine response and overall driving experience.

In this collection, you'll find a selection of high-quality intakes, filters, headers, ignition components, and tuning support. These parts are engineered for precise fitment and maximum performance gains, making your xA more responsive and enjoyable to drive. From simple bolt-ons to comprehensive upgrades, our parts are trusted by enthusiasts who want dependable, effective results.

Explore our range of engine upgrades to boost your Scion xA’s performance and reliability. Shop engine performance parts for your xA at FastScions.

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568 Results

Fuel Injector Clinic 1650cc Fuel Injectors: Scion tC / xA / xB / xB2
Sale

Fuel Injector Clinic 1650cc Fuel Injectors: Scion tC / xA / xB / xB2

Fuel Injector Clinic

Regular price from $914.00 Up to 13% off

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per 

Fuel Injector Clinic 1200cc Fuel Injectors: Scion tC / xA / xB / xB2
Fuel Injector Clinic 1200cc Fuel Injectors: Scion tC / xA / xB / xB2
Sale

Fuel Injector Clinic 1200cc Fuel Injectors: Scion tC / xA / xB / xB2

Fuel Injector Clinic

Regular price from $567.00 Up to 13% off

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per 

Fuel Injector Clinic 1000cc Fuel Injectors: Scion tC / xA / xB / xB2
Fuel Injector Clinic 1000cc Fuel Injectors: Scion tC / xA / xB / xB2
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Fuel Injector Clinic 1000cc Fuel Injectors: Scion tC / xA / xB / xB2

Fuel Injector Clinic

Regular price from $457.00 Up to 13% off

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per 

Fuel Injector Clinic 775cc Fuel Injectors: Scion tC / xA / xB / xB2
Fuel Injector Clinic 775cc Fuel Injectors: Scion tC / xA / xB / xB2
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Fuel Injector Clinic 775cc Fuel Injectors: Scion tC / xA / xB / xB2

Fuel Injector Clinic

Regular price from $410.00 Up to 13% off

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Motul Gear 300 LS 75W90 Transmission Oil 20L: Fits Most Toyota & Subaru Models
Motul Gear 300 LS 75W90 Transmission Oil 20L: Fits Most Toyota & Subaru Models
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Motul Gear 300 LS 75W90 Transmission Oil 20L: Fits Most Toyota & Subaru Models

Motul

Regular price $554.57 $499.11 10% off

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Boomslang AEM F/IC-6 Plug N Play Harness: Scion tC 2007 - 2010
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Boomslang AEM F/IC-6 Plug N Play Harness: Scion tC 2007 - 2010

Boomslang

Regular price $795.00 $765.00 4% off

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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 $134.95 20% off

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Banks Power Pedal Monster: Fits Scion FR-S, Subaru BRZ, Toyota 86 & More
Banks Power Pedal Monster: Fits Scion FR-S, Subaru BRZ, Toyota 86 & More
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Banks Power Pedal Monster: Fits Scion FR-S, Subaru BRZ, Toyota 86 & More

Banks Power

Regular price $327.78 $295.00 10% off

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LIQUI MOLY Top Tec Truck 4450 Motor Oil SAE 15W40 (20383): Fits Most Models
LIQUI MOLY Top Tec Truck 4450 Motor Oil SAE 15W40 (20383): Fits Most Models
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LIQUI MOLY Top Tec Truck 4450 Motor Oil SAE 15W40 (20383): Fits Most Models

LIQUI MOLY

Regular price $227.95 $197.70 13% off

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LIQUI MOLY Synthoil Race Tech GT1 Motor Oil SAE 10W60 (20127): Fits Most Scion Models
LIQUI MOLY Synthoil Race Tech GT1 Motor Oil SAE 10W60 (20127): Fits Most Scion Models
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LIQUI MOLY Synthoil Race Tech GT1 Motor Oil SAE 10W60 (20127): Fits Most Scion Models

LIQUI MOLY

Regular price $379.95 $298.48 21% off

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LIQUI MOLY Top Tec 4110 Motor Oil SAE 5W40: Fits Most Models
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LIQUI MOLY Top Tec 4110 Motor Oil SAE 5W40: Fits Most Models

LIQUI MOLY

Regular price $299.95 $255.90 15% off

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LIQUI MOLY Special Tec AA Motor Oil SAE 5W40 Diesel: Fits Most Models
LIQUI MOLY Special Tec AA Motor Oil SAE 5W40 Diesel: Fits Most Models
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LIQUI MOLY Special Tec AA Motor Oil SAE 5W40 Diesel: Fits Most Models

LIQUI MOLY

Regular price $293.95 $247.66 16% off

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Liqui Moly Diesel Particulate Filter Protector: Fits Most Models
Liqui Moly Diesel Particulate Filter Protector: Fits Most Models
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Liqui Moly Diesel Particulate Filter Protector: Fits Most Models

LIQUI MOLY

Regular price $155.70 $102.13 34% off

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Liqui Moly Cera Tec: Fits Most Models
Liqui Moly Cera Tec: Fits Most Models
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Liqui Moly Cera Tec: Fits Most Models

LIQUI MOLY

Regular price $299.70 $239.83 20% off

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Liqui Moly Hydraulic Lifter Additive: Fits Most Models
Liqui Moly Hydraulic Lifter Additive: Fits Most Models
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Liqui Moly Hydraulic Lifter Additive: Fits Most Models

LIQUI MOLY

Regular price $227.40 $147.56 35% off

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Liqui Moly Valve Clean: Fits Most Models
Liqui Moly Valve Clean: Fits Most Models
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Liqui Moly Valve Clean: Fits Most Models

LIQUI MOLY

Regular price $179.40 $121.25 32% off

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Upgrade Your 2004-2006 Scion xA with Performance Engine Parts for Enhanced Power and Reliability

Designed specifically for your 2004-2006 Scion xA, our collection of engine performance parts helps you unlock smoother acceleration, improved throttle response, and increased reliability. Whether you're seeking more power for spirited drives or better efficiency for daily commuting, these curated upgrades are built to elevate your vehicle’s engine response and overall driving experience.

What are the benefits of engine performance parts for the Scion xA?

Upgrading your engine components can lead to noticeable improvements in acceleration, responsiveness, and fuel efficiency. High-quality parts like intakes, filters, headers, and ignition components are engineered for precise fitment and maximum gains, making your xA more responsive and enjoyable to drive. These upgrades also enhance reliability by supporting your engine under increased loads and stress.

  • Better throttle response and smoother power delivery
  • Increased engine efficiency and potential fuel savings
  • Enhanced reliability and engine longevity
  • Customizable options for street or performance-focused driving

How do I choose the right engine upgrade parts for my Scion xA?

When selecting performance parts, consider your driving goals—whether it's daily reliability, street performance, or a mild boost for weekend fun. Ensure compatibility with your vehicle's engine specifications and look for parts made from durable, high-quality materials. Consulting product descriptions and compatibility guides can help you make informed choices for your specific model year and setup.

What supporting modifications should I consider for optimal results?

To maximize the benefits of your engine upgrades, consider supporting modifications such as a high-flow intake, performance exhaust, and ECU tuning. Proper fueling and ignition components can also enhance power gains and drivability. Shop the collection at FastScions to find all the essential parts needed to build a reliable, responsive engine setup for your Scion xA.

SELECT YOUR VEHICLE