2020 Subaru WRX STI Exhaust Upgrade Parts
48 parts verified to fit your 2020 Subaru WRX STI for a complete exhaust upgrade. A moderate DIY project — estimated 2-5 hours.
Cat-Back Exhaust
(24)primary
CORSA Performance
Corsa 2015-2021 Subaru WRX Cat Back Exhaust Black Quad 3.5in Tips *Sport*
$2194.43
Borla
Borla 15-16 Subaru WRX / STI 2.5L S-Type Cat-Back Exhaust Quad Rd RL Tips
$1799.99
CORSA Performance
Corsa 2015-2021 Subaru WRX Cat Back Exhaust Polished Quad 3.5in Tips Sport
$2112.51
Mishimoto
Mishimoto 2015 Subaru WRX 3in Stainless Steel Cat-Back Exhaust
$1358.80
Borla
Borla 15-19 Subaru WRX/STI 2.5L Turbo 3in S-Type Catback Exhaust - 2.5in Black Chrome Tips
$1949.99
Injen
Injen 15-20 Subaru STI Cat Back Exhaust w/ Quad Titanium Tips
$1527.91
BLOX Racing
BLOX Cat-Back Exhaust System T304 SS 2015+ Subaru WRX
$1164.80
aFe
aFe Takeda 3in 304 SS Cat-Back Exhaust System 15-18 Subaru WRX/WRX STI H4-2.0/2.5L (t)
$2135.00
Headers
(2)primary
Mufflers
(22)primary
Fel-Pro
Fel-Pro 15-21 Subaru WRX/13-21 WRX STI/17-20 Toyota 86 Exhaust Pipe Flange Gasket
$6.60
Fel-Pro
Fel-Pro 15-21 Subaru WRX/13-21 WRX STI/13-20 BRZ Exhaust Pipe Flange Gasket
$14.58
Turbo XS
Turbo XS Subaru OEM Downpipe to 3in Cat-Back Adapter w/Stainless Steel Exhaust Gasket
$46.90
Magnaflow
MagnaFlow Conv DF 08-09 Subaru STi front OEM
$966.00
Magnaflow
MagnaFlow Conv DF 08-09 Subaru STi Rear OEM
$781.00
Turbo XS
Turbo XS Subaru EJ20/EJ25 (Single Scroll Turbo) 5 Layer SS Turbine Outlet Gasket
$16.74
Fel-Pro
Fel-Pro 15-21 Subaru WRX/13-21 WRX STI/13-20 BRZ/1720 Toyota 86 Exhaust Pipe Flange Gasket
$8.68
Turbo XS
Turbo XS Subaru 3in Downpipe to OEM Cat-Back Adapter w/Stainless Steel Exhaust Gasket
$65.66
Exhaust Upgrade for Other Subaru WRX STI Years
Other Jobs for Your 2020 Subaru WRX STI
Frequently Asked Questions
What parts do I need for a exhaust upgrade on my 2020 Subaru WRX STI?
A complete exhaust upgrade on the 2020 Subaru WRX STI typically requires cat-back exhaust, headers, mufflers. All parts shown on this page are verified to fit your specific vehicle.
How long does a exhaust upgrade take on a 2020 Subaru WRX STI?
A exhaust upgrade typically takes 2-5 hours and is rated as moderate difficulty. Actual time may vary depending on your experience and the specific parts being replaced.
Can I do a exhaust upgrade myself?
A exhaust upgrade is a moderate DIY project. If you have some mechanical experience and the right tools, you can handle it. Otherwise, consider having a professional do the work.
Are these parts guaranteed to fit my 2020 Subaru WRX STI?
Yes, all parts on this page are verified to fit the 2020 Subaru WRX STI using VCDB fitment data from manufacturers. Our fitment information is cross-referenced with industry-standard vehicle databases to ensure accuracy.
What brands make exhaust upgrade parts for the 2020 Subaru WRX STI?
We carry exhaust upgrade parts from trusted brands including CORSA Performance, Borla, Mishimoto, Injen, and BLOX Racing. Filter by brand to find your preferred manufacturer.
How much does a exhaust upgrade cost for a 2020 Subaru WRX STI?
The cost of a exhaust upgrade for the 2020 Subaru WRX STI 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.