2021 Subaru WRX Tune-Up Parts
54 parts verified to fit your 2021 Subaru WRX for a complete tune-up. This is an easy DIY project — estimated 1-2 hours.
Air Filters
(3)primary
Fuel Injectors
(8)companion
DeatschWerks
DeatschWerks 12+ Subaru BRZ/12+ Scion FRS / 15 WRX DW65C 265lph Compact In-Tank Fuel Pump
$159.00
DeatschWerks
DeatschWerks 340lph DW300C Compact Fuel Pump w/ 12+ Scion FR-S/BRZ / 15 WRX Set Up Kit
$189.00
DeatschWerks
DeatschWerks 22-24 Subaru WRX / 21-24 BRZ/GR86 DW300C Series 340lph Compact Fuel Pump W/ Install Kit
$189.00
DeatschWerks
DeatschWerks 22-24 Subaru WRX / 21-24 Subaru BRZ DW430C 430lph Compact Fuel Pump
$219.00
DeatschWerks
DeatschWerks 12-15 Subaru BRZ / Toyota 86 / Scion FR-S DW430C 430lph Compact Fuel Pump
$219.00
DeatschWerks
DeatschWerks DW300 Performance Pump Module for 15-21 WRX
$499.00
DeatschWerks
DeatschWerks Toyota / Subaru Performance In-Tank Regulator - High Performance 4.5 BAR
$39.00
DeatschWerks
DeatschWerks DW400 Performance Pump Module for 15-21 WRX
$539.00
Fluids & Additives
(43)consumable
LIQUI MOLY
LIQUI MOLY 1L Fully Synthetic Hypoid Gear Oil (GL4/5) 75W90
$127.77
LIQUI MOLY
LIQUI MOLY 1L Top Tec 4600 Motor Oil SAE 5W30
$78.39
LIQUI MOLY
LIQUI MOLY 5L Top Tec 4600 Motor Oil SAE 5W30
$237.03
LIQUI MOLY
LIQUI MOLY 5L Special Tec AA Motor Oil SAE 5W30
$145.98
Royal Purple
Royal Purple Max Gear Synthetic 75W90 Gear Oil - 1 Quart
$107.94
K&N
K&N Universal Performance Gold Oil Filter
$17.99
LIQUI MOLY
LIQUI MOLY 500mL Brake Fluid DOT 4
$151.91
K&N
K&N 19-23 Genesis G70 2.0L L4 / 21-23 Hyundai Elantra Hybrid 1.6L L4 Spin-On Oil Filter
$10.99
Tune-Up for Other Subaru WRX Years
Other Jobs for Your 2021 Subaru WRX
Frequently Asked Questions
What parts do I need for a tune-up on my 2021 Subaru WRX?
A complete tune-up on the 2021 Subaru WRX typically requires air filters, fuel injectors, fluids & additives. All parts shown on this page are verified to fit your specific vehicle.
How long does a tune-up take on a 2021 Subaru WRX?
A tune-up typically takes 1-2 hours and is rated as easy difficulty. Actual time may vary depending on your experience and the specific parts being replaced.
Can I do a tune-up myself?
Yes! A tune-up is an easy DIY project that most people can do with basic hand tools. It's a great way to save money on labor costs.
Are these parts guaranteed to fit my 2021 Subaru WRX?
Yes, all parts on this page are verified to fit the 2021 Subaru WRX using VCDB fitment data from manufacturers. Our fitment information is cross-referenced with industry-standard vehicle databases to ensure accuracy.
What brands make tune-up parts for the 2021 Subaru WRX?
We carry tune-up parts from trusted brands including K&N, Spectre, DeatschWerks, LIQUI MOLY, and Royal Purple. Filter by brand to find your preferred manufacturer.
How much does a tune-up cost for a 2021 Subaru WRX?
The cost of a tune-up for the 2021 Subaru WRX depends on the parts and brands you choose. Browse the parts on this page to see current pricing. Doing the work yourself saves significantly on labor costs.