2008-2014 WRX STI Axle-Back Exhausts

FactionFab
Axle Back Exhaust Polished Tip Sedan
Fits: 11-14 WRX/STI

$39000
FactionFab
Axle Back Exhaust - Black Tips - Sedan
Fits: 11-14 WRX, 11-14 WRX STI

$43920

Pay over time · Est. $13.73/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.
FactionFab
Axle Back Exhaust - Polished Tips - Hatchback
Fits: 11-14 WRX, 08-14 WRX STI

$46080

Pay over time · Est. $14.40/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.
FactionFab
Axle Back Exhaust - Burnt Tips - Sedan
Fits: 11-14 WRX, 11-14 WRX STI

$47640

Pay over time · Est. $14.89/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.
Nameless Performance
Axle Back Polished Tips and No Muffler for Invidia Q300 / R400 Catback Exhaust Systems
Fits: 11-21 WRX Sedan, 11-21 STI Sedan

$73000

Pay over time · Est. $22.81/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.
Nameless Performance
Axle Back Neochrome Tips for Invidia Q300 / R400 Catback Exhaust Systems
Fits: 11-21 WRX Sedan, 11-21 STI Sedan

$84000

Pay over time · Est. $26.25/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.
Nameless Performance
Axleback w/ Single Wall 3.5" Polished Tips and Muffler Delete
Fits: 11-14 WRX/STI Sedan

$69000

Pay over time · Est. $21.56/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.
Nameless Performance
Axleback w/ Single wall 3.5" Neochrome Tips and Muffler Delete
Fits: 11-14 WRX/STI Sedan

$75000

Pay over time · Est. $23.44/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.
Nameless Performance
AxleBack w/ Single Wall 3.5" Polished Tips and 5" Mufflers
Fits: 11-14WRX, 11-14 STI

$93000

Pay over time · Est. $29.06/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 $20.79 off

In Stock

AWE Tuning
Touring to Track Conversion Axle Back Exhaust
Fits: 11-25 WRX Sedan, 11-21 STI Sedan

Only 3 left

$39500~~$415.79~~ Save $20.79

Pay over time · Est. $12.34/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.
HKS
Legamax Premium Axle-Back Exhaust WRX 2011-2014 / STI 2008-2014 Hatchback | 31021-AF013

$1,70000

Pay over time · Est. $53.13/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.
Nameless Performance
Track Pipe and No Muffler
Fits: 11-14 WRX, 08-14 STI

$25000

Pay over time · Est. $7.81/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.
Nameless Performance
Axleback w/ Double wall 3" Polished Tips and No Muffler | SUAB11WRXSED-0MU-30SDW
Fits: 11-14 WRX/STI Sedan

$54000

Pay over time · Est. $16.88/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.
Nameless Performance
Axleback w/ 3.5" Single wall Tips and No Muffler
Fits: 08-10 WRX Sedan

$57000

Pay over time · Est. $17.81/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.

Axle-back exhausts are the simplest way to change how your 2008-2014 WRX STI sounds and looks, without touching emissions equipment or the factory mid-pipe. Every system in this collection bolts directly to the stock mid-pipe flange for the 2008-2014 WRX STI, so fitment is guaranteed and installation is typically a one-hour driveway job with basic hand tools.

When comparing options, start with material. Most axle-backs here are T304 stainless steel, which resists corrosion far better than the aluminized steel many factory systems use — worth it if your car sees winter salt. Titanium systems cost more but save meaningful weight at the very rear of the car, where it helps balance most. Tip finish is mostly cosmetic — polished, burnt, black chrome, or carbon fiber — but check tip diameter against your rear bumper cutouts so nothing rubs.

Sound is the real decision. Axle-backs change tone and volume but keep the factory resonator and catalytic converter, so the increase is moderate: deeper idle, more character under load, and generally no highway drone. If your WRX STI is otherwise stock, any of these will stay civil. If you already have a downpipe or a cat-back, an axle-back is the wrong place to add more volume — look at resonated options or keep the stock mufflers.

Use the filters on this page to narrow by material, tip finish, and sound level. Every listing is confirmed for the 2008-2014 WRX STI chassis, so whatever you pick will bolt on without modification.