Subaru STi Performance Exhaust - aFe - Cat Back Takeda 3in to 2-1/2in Stainless Carbon Fiber Tip - `15-`21
Subaru STi Performance Exhaust - aFe - Cat Back Takeda 3in to 2-1/2in Stainless Carbon Fiber Tip - `15-`21

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Subaru STi Performance Exhaust - aFe - Cat Back Takeda 3in to 2-1/2in Stainless Carbon Fiber Tip - 15-21 is a direct-fit cat-back system designed for 2015–2021 WRX/STi models. This aFe Takeda cat-back pairs durable stainless piping with a carbon fiber tip to deliver a responsive exhaust note and clean rear-end styling.
The system replaces the factory cat-back with a 3" to 2-1/2" stainless configuration engineered to maintain fitment for H4 2.0L and 2.5L engines from 2015–2021. Its stainless construction helps resist corrosion from road exposure, and the carbon fiber tip offers a lightweight, high-quality finish at the outlet. This cat-back preserves factory hangers and mounting points for a straightforward installation while providing a more aggressive tone and improved flow compared to stock routing.
Features
- Direct-fit cat-back for Subaru WRX/STi 2015–2021 (H4 2.0L/2.5L)
- 3" to 2-1/2" stainless piping for durability and flow
- Carbon fiber exhaust tip for refined outlet appearance
- Designed to use factory hangers and mounting locations
- Replaces full rear section (cat-back) for a bolt-on upgrade
If you have questions or want help confirming fitment, call us directly — we’re happy to assist. Visit our installation and customization centers in Austin, Texas and the Los Angeles, California area; we offer on-premises installation at both locations. 512-982-9393 (TX) • 562-981-6800 (CA)
If you’re considering purchasing multiple items, please contact us for shipping discounts. We install on premises at both locations.
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