2006-2007 WRX Cat-Back Exhausts

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%
Up to $390.18 off

In Stock

Invidia
N1 Racing Cat-Back Exhaust - Stainless Steel
Fits: 02-07 WRX, 04-07 WRX STI

Only 6 left

$86100~~$1,251.18~~ Save $390.18

Pay over time · Est. $26.91/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 $122.16 off

TurboXS
Cat-Back Exhaust - Polished Tip
Fits: 02-07 WRX, 04-07 WRX STI

$71100~~$833.16~~ Save $122.16

Pay over time · Est. $22.22/payment

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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

PL Motorsports
P&L Motorsports Track Series Cat-Back Exhaust
Fits: 02-07 WRX/STI

Only 10 left

From $54995

Pay over time · Est. $17.19/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

PL Motorsports
P&L Motorsports Race Series Cat-Back Exhaust
Fits: 02-07 WRX/STI/FXT

Only 6 left

From $76295

Pay over time · Est. $23.84/payment

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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 $19 off

COBB Tuning
COBB Titanium Cat-Back Exhaust System
Fits: 02-07 WRX, 04-07 STI

$1,51100~~$1,530.00~~ Save $19

Pay over time · Est. $47.22/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
Stainless Steel 3-Inch Cat-Back Exhaust
Fits: 02-07 WRX, 04-07 STI

Only 15 left

$90500

Pay over time · Est. $28.28/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.
Tomioka Racing
Cat-Back Exhaust
Fits: 02-07 WRX/STI

$80000

Pay over time · Est. $25.00/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 $238.50 off

In Stock

Turbo XS
Cat-Back Exhaust - Polished Tips
Fits: 02-07 WRX/STI

$59466~~$833.16~~ Save $238.50

Pay over time · Est. $18.58/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 $40.47 off

Turbo XS
Cat-Back Adapter Pipe
Fits: 02-07 WRX, 04-07 WRX STI

$15400~~$194.47~~ Save $40.47
In Stock

HKS
WRX &
Fits: 2002-2007

$89000

Pay over time · Est. $27.81/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
Carbon-Titanium Hi-Power Cat-Back Exhaust
Fits: 2002-2007 WRX / 2004-2007 WRX STI

$1,30000

Pay over time · Est. $40.63/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
Hi-Power Cat-Back Exhaust
Fits: 02-07 WRX/STI

$77000

Pay over time · Est. $24.06/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.
Megan Racing
OE-RS Cat-Back Exhaust
Fits: 02-07 WRX/STI

$59400
In Stock

Megan Racing
Turbo Type Cat-Back Exhaust
Fits: 02-07 WRX/STI

Only 5 left

$59400

Pay over time · Est. $18.56/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 $129 off

In Stock

Tomei
Expreme Ti Titanium Cat-Back Exhaust
Fits: 02-07 WRX / 04-07 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.

A cat-back exhaust replaces everything from the catalytic converter rearward on your 2006-2007 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 2006-2007 WRX.