Perrin
Perrin Stainless Steel Midpipe w/Resonator 3in. Subaru WRX 2022-2026 | PSP-EXT-340BR
2022+ Subaru WRX (VB)
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Overview
The PERRIN Performance Stainless Steel Midpipe with Resonator is a direct-replacement 3-inch midpipe engineered specifically for the 2022–2026 Subaru WRX (VB chassis). Designed to eliminate the flow restrictions of the factory midpipe, this fully TIG-welded assembly improves exhaust scavenging and delivers a more aggressive exhaust character — all while maintaining broad compatibility with OEM and aftermarket exhaust components. Built from 304 stainless steel and backed by PERRIN's 5-year warranty, it's a straightforward upgrade for any enthusiast looking to unlock more sound and flow from their VB WRX.
Key Features & Benefits
- 304 Stainless Steel Construction — Premium-grade stainless provides long-term corrosion resistance and durability in harsh driving and weather conditions.
- 3-Inch Main Tubing with 2.5-Inch Y-Pipe — Larger-diameter piping versus OEM reduces exhaust backpressure and improves flow velocity through the mid-section of the exhaust system.
- Fully TIG Welded — Precision TIG welding throughout ensures leak-free joints and a clean, professional finish consistent with PERRIN's manufacturing standards.
- Integrated Resonator — The resonated design refines exhaust tone, producing a deeper, mellow rumble at idle and lower RPMs while allowing a more aggressive note under heavy throttle — without the drone common to non-resonated setups.
- Broad OEM & Aftermarket Compatibility — Bolts directly to OEM and aftermarket front pipes, and accepts any OEM or aftermarket axle-back exhaust, making it a versatile foundation for a staged exhaust build.
- Bolt-On Installation — Drop-in fitment with included hardware, couplers, and gaskets simplifies installation without requiring custom fabrication.
- 5-Year PERRIN Warranty — Covered by PERRIN's industry-recognized 5-year warranty for added confidence in the investment.
What's Included
- (1) PERRIN Midpipe with Resonator
- (1) PERRIN Y-Pipe
- (1) PERRIN S-Pipe
- (2) Exhaust Couplers
- (3) Exhaust Gaskets
- Installation Hardware
- Warranty Documentation & Installation Instructions
Specifications
| Brand | PERRIN Performance |
|---|---|
| Part Number | PSP-EXT-340BR |
| Main Pipe Diameter | 3 inches |
| Y-Pipe Diameter | 2.5 inches |
| Material | 304 Stainless Steel |
| Construction | Fully TIG Welded |
| Resonator | Included |
| Warranty | 5 Years |
| Emissions Compliance | Not CARB compliant — not legal for sale or use in California |
Fitment & Compatibility
This midpipe is designed exclusively for the 2022–2026 Subaru WRX (VB chassis). It is compatible with both OEM and aftermarket front pipes (up-pipe/downpipe connections) and accepts any OEM or aftermarket axle-back exhaust system. This makes it suitable as a standalone midpipe upgrade or as part of a full cat-back or staged exhaust build. Not legal for sale or use in California or other CARB-regulated states.
Installation
The PERRIN Midpipe is designed as a bolt-on replacement for the factory midpipe assembly. All necessary hardware, couplers, and gaskets are included for a complete installation. While the job is approachable for experienced home mechanics with a proper lift or jack stands, professional installation is recommended to ensure correct torque specs and leak-free fitment. Always follow the included instruction sheet and allow the exhaust system to cool fully before beginning work.
Installation: Official Perrin installation instructions (PDF)