2021 Subaru WRX Tune-Up Parts
68 parts listed for your 2021 Subaru WRX for a complete tune-up. Choose your trim on product pages to confirm exact fit. This is an easy DIY project - estimated 1-2 hours.
Air Filters
(10)primary
Beck Arnley
AIR FILTER
$16.87
Hengst
Air filter insert
$9.78
Beck Arnley
CABIN AIR FILTER
$15.47
Pronto
Engine Air Filter
$15.00
K&N
K&N 05-08 LGT / 08-11 WRX / STi Drop In Air Filter
$68.99
K&N
K&N 09-18 Subaru Forester 2.5L H4 F/I Cabin Air Filter
$47.99
Baldwin Filters
Panel Air Element
$13.42
Hengst
Pollen Cabin Air Filter
$15.60
Fuel Injectors
(13)companion
DeatschWerks
DeatschWerks 12-15 Subaru BRZ / Toyota 86 / Scion FR-S DW430C 430lph Compact Fuel Pump
$219.00
DeatschWerks
DeatschWerks 12+ Subaru BRZ/12+ Scion FRS / 15 WRX DW65C 265lph Compact In-Tank Fuel Pump
$159.00
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 340lph DW300C Compact Fuel Pump w/ 12+ Scion FR-S/BRZ / 15 WRX Set Up Kit
$189.00
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
Vernet
Fuel Cap
$8.05
Fluids & Additives
(45)consumable
Dorman
Engine Oil Cooler Adapter Seal
$8.42
Motorad
Engine Oil Filler Cap
$12.51
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
K&N
K&N Universal Performance Gold Oil Filter
$17.99
LIQUI MOLY
LIQUI MOLY 1L Brake Fluid DOT 4
$66.14
LIQUI MOLY
LIQUI MOLY 1L Fully Synthetic Hypoid Gear Oil (GL4/5) 75W90
$25.88
LIQUI MOLY
LIQUI MOLY 1L Fully Synthetic Hypoid Gear Oil (GL5) LS SAE 75W140
$204.10
LIQUI MOLY
LIQUI MOLY 1L Hypoid Gear Oil (GL5) SAE 85W90
$67.53
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. This page groups parts commonly associated with that year, make, and model; confirm your trim on product pages for exact fit.
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?
These parts are listed for the 2021 Subaru WRX using manufacturer fitment data. Some products fit every trim, while others require trim confirmation. Use your trim in My Garage or the product page fitment checker to confirm exact fit.
What brands make tune-up parts for the 2021 Subaru WRX?
We carry tune-up parts from trusted brands including Beck Arnley, Hengst, Pronto, K&N, and Baldwin Filters. 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.