2015-2021 WRX Cat-Back Exhausts

Up to $129 off

In Stock

Tomei
Expreme Ti Titanium Cat-Back Exhaust - Sedan
Fits: 08-21 WRX, 11-21 WRX STI

Only 5 left

$1,16100~~$1,290.00~~ Save $129

Pay over time · Est. $36.28/payment

ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Up to $751.60 off

In Stock

Invidia
Gemini R400 Signature Series Black Tip Cat-Back Exhaust
Fits: 15-21 WRX/STI

Only 5 left

$1,65500~~$2,406.60~~ Save $751.60

Pay over time · Est. $51.72/payment

ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Up to $6 off

In Stock

OVERTAKE
Cat-Back Exhaust Refresh Kit - 3 in. Single Exit
Fits: 02-26 WRX, 04-21 STI, 13-26 BRZ/GR86

Only 3 left

$4900~~$55.00~~ Save 11%
In Stock

Extreme Turbo Systems
ETS Extreme Catback Exhaust Non Resonated Burnt Tips
Fits: 15-21 WRX/STI

Only 1 left

$1,29500

Pay over time · Est. $40.47/payment

ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
In Stock

COBB Tuning
Titanium Cat-Back Exhaust
Fits: 11-21* WRX/STI Sedan

Only 6 left

$2,45000

Pay over time · Est. $76.56/payment

ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Up to $62.89 off

In Stock

AWE Tuning
Track Edition Cat-Back Exhaust - Chrome Silver Tips
Fits: 11-21 WRX/STI Sedan

Only 9 left

$1,19500~~$1,257.89~~ Save $62.89

Pay over time · Est. $37.34/payment

ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Up to $525.10 off

In Stock

Invidia
N1 Dual Cat-Back Exhaust - Titanium Tips
Fits: 15-21 WRX/STI

Only 12 left

$1,15700~~$1,682.10~~ Save $525.10

Pay over time · Est. $36.16/payment

ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Up to $216 off

In Stock

Borla
Borla
Fits: 15-21 WRX

Only 7 left

$1,79999~~$2,015.99~~ Save $216

Pay over time · Est. $56.25/payment

ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
aFe
Takeda Cat-Back Exhaust - Polished Stainless Steel Tips
Fits: 15-21 WRX/STI

$1,36200
aFe
Takeda 3-Inch to 2-1/2-Inch Cat-Back Exhaust - Blue Flame Tips
Fits: 15-21 WRX/STI

$1,46100
aFe
Takeda Cat-Back Exhaust - Black Tips
Fits: 15-21 WRX/STI

$1,46100
aFe
Takeda Cat-Back Exhaust - Brushed Stainless Steel, Black Carbon Fiber Tips
Fits: 15-21 WRX/STI

$1,46100
Remark
R1-Spec Cat-Back Dual Exhaust - Stainless Steel, Non-Resonated
Fits: 15-21 WRX/STI

$1,09500
Remark
R1-Spec Cat-Back Dual Exhaust - Burnt Stainless, Non-Resonated
Fits: 15-21 WRX/STI

$1,19500
In Stock

Remark
R1-Spec Resonated Cat-Back Dual Exhaust - Burnt Stainless
Fits: 15-21 WRX/STI

Only 1 left

$1,29500

Pay over time · Est. $40.47/payment

ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
In Stock

HKS
Super Turbo Muffler Cat-Back Exhaust System
Fits: 15-21 WRX

Only 1 left

$2,20000

Pay over time · Est. $68.75/payment

ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

A cat-back exhaust replaces everything from the catalytic converter rearward on your 2015-2021 WRX — mid-pipe, resonator (if equipped), and mufflers. It is the single most popular first performance modification for a reason: meaningful sound transformation, a small but real power gain once tuned, and zero emissions or inspection concerns since all factory catalytic converters stay in place.

Start with tubing diameter. For a stock-turbo WRX, 3-inch systems are the standard and support everything up to moderate turbo upgrades. Larger diameters only help once you are making serious power; on a stock car they cost low-end response and add drone for no benefit. Material matters for longevity: T304 stainless steel is the baseline you should expect at this price point, while titanium saves 20-plus pounds but at a steep premium.

Sound level deserves honest thought about how you actually drive. "Mild" systems stay near stock at cruise with a deeper tone under load — the right pick for a daily driver. "Aggressive" systems are genuinely loud and will drone on the highway; great for weekends, tiring every day. Resonated mid-pipes tame rasp and drone without killing character, and they are worth the money on long-tube or equal-length header setups.

Tip finish — polished, burnt blue, matte black, or carbon fiber — is personal taste, but confirm tip size clears your bumper. Filter this collection by material, sound level, and resonated options to find the right system for your 2015-2021 WRX.