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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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579 Results

NGK Iridium IX Spark Plugs: Scion tC tC2 xA xB xB2
NGK Iridium IX Spark Plugs: Scion tC tC2 xA xB xB2
Sale

NGK Iridium IX Spark Plugs: Scion tC tC2 xA xB xB2

NGK

Regular price $57.00 $40.60 29% off

Unit price
per 

Weapon R Race Intake Manifold: Scion xA / xB 2004 - 2006
Sale

Weapon R Race Intake Manifold: Scion xA / xB 2004 - 2006

Weapon R

Regular price $788.00 $670.24 15% off

Unit price
per 

Weapon R Thermal Throttle Body Gasket: Scion xA  / xB 2004 - 2006
Sold out

Weapon R Thermal Throttle Body Gasket: Scion xA / xB 2004 - 2006

Weapon R

Regular price $39.00 $36.96 5% off

Unit price
per 

Fuel Injector Clinic 650cc Fuel Injectors: Scion tC / xA / xB / xB2
Fuel Injector Clinic 650cc Fuel Injectors: Scion tC / xA / xB / xB2
Sale

Fuel Injector Clinic 650cc Fuel Injectors: Scion tC / xA / xB / xB2

Fuel Injector Clinic

Regular price from $378.00 Up to 13% off

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per 

Fuel Injector Clinic 445cc Fuel Injectors: Scion tC / xA / xB / xB2
Fuel Injector Clinic 445cc Fuel Injectors: Scion tC / xA / xB / xB2
Sale

Fuel Injector Clinic 445cc Fuel Injectors: Scion tC / xA / xB / xB2

Fuel Injector Clinic

Regular price from $389.00 Up to 13% off

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per 

Weapon R Thermal Intake Manifold Gasket: Scion xA  / xB 2004 - 2006
Sold out

Weapon R Thermal Intake Manifold Gasket: Scion xA / xB 2004 - 2006

Weapon R

Regular price $90.00 $76.16 15% off

Unit price
per 

Fuel Injector Clinic 525cc Fuel Injectors: Scion tC / xA / xB / xB2
Fuel Injector Clinic 525cc Fuel Injectors: Scion tC / xA / xB / xB2
Sale

Fuel Injector Clinic 525cc Fuel Injectors: Scion tC / xA / xB / xB2

Fuel Injector Clinic

Regular price from $352.00 Up to 13% off

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per 

Liqui Moly High Tech Motor Oil SAE 5W40: Fits Most Models
Liqui Moly High Tech Motor Oil SAE 5W40: Fits Most Models
Sale

Liqui Moly High Tech Motor Oil SAE 5W40: Fits Most Models

LIQUI MOLY

Regular price $235.49 $201.86 14% off

Unit price
per 

Deatschwerks 440cc Fuel Injectors: Scion tC / xA / xB / xB2

Deatschwerks 440cc Fuel Injectors: Scion tC / xA / xB / xB2

Deatschwerks

$359.00

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per 

Injen Short Ram Intake: Scion xA 2004 - 2006
Sale

Injen Short Ram Intake: Scion xA 2004 - 2006

Injen

Regular price $405.36 $366.96 9% off

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per 

K&N Cabin Air Filter
K&N Cabin Air Filter

K&N Cabin Air Filter: Scion xA/xB/tC/xD/iQ/iA/iM & Dodge Caliber

K&N Engineering

$47.99

Unit price
per 

Greddy Exhaust Gasket 2 Bolt 60mm: Fits Most Models
Sale

Greddy Exhaust Gasket 2 Bolt 60mm: Fits Most Models

Greddy

Regular price $7.00 $6.65 5% off

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per 

Radium Engineering Electrical Bulkhead Stud Kit: Fits Most Models
Radium Engineering Electrical Bulkhead Stud Kit: Fits Most Models
Sale

Radium Engineering Electrical Bulkhead Stud Kit: Fits Most Models

Radium Engineering

Regular price $59.95 $56.95 5% off

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per 

ARP 1NZFE Head Stud Kit: Scion xA / xB 2004 - 2006
Sale

ARP 1NZFE Head Stud Kit: Scion xA / xB 2004 - 2006

ARP

Regular price $297.94 $293.03 2% off

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per 

Boomslang AEM EMS-4 Plug N Play Harness: Scion xA / xB 2006
Sale

Boomslang AEM EMS-4 Plug N Play Harness: Scion xA / xB 2006

Boomslang

Regular price $795.00 $765.00 4% off

Unit price
per 

Weapon R Engine Torque Damper: Scion xA / xB 2004 - 2006
Sale

Weapon R Engine Torque Damper: Scion xA / xB 2004 - 2006

Weapon R

Regular price $299.00 $230.38 23% off

Unit price
per 

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.

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