2022+ Subaru WRX Fender Exit

2022+ Subaru WRX VB 3.5" Stainless Side Exit Exhaust

Built specifically for the 2022+ Subaru WRX VB chassis, the Function Fab 3.5" Side Exit Exhaust replaces the factory exhaust with a large-diameter, high-flow system designed for maximum exhaust flow and a completely different sound and appearance.

Hand-fabricated from 3.5" 304 stainless steel and fully TIG welded in-house, each system is built around the VB WRX for proper routing, clearance, and fitment.

The side-exit configuration gives the car an aggressive, motorsport-inspired appearance while dramatically opening up the exhaust path behind the turbo.

Built for the VB WRX
3.5" 304 stainless steel construction
Fully TIG welded in-house
High-flow, large-diameter exhaust path
Designed specifically for the 2022+ Subaru WRX VB chassis
Side-exit configuration
Built for performance-focused and track-oriented applications
Fabricated and inspected by Function Fab in Connecticut
Why 3.5"?

The VB WRX responds well to a properly designed, high-flow exhaust system. The 3.5" diameter tubing minimizes restriction through the exhaust path, making this system ideal for modified and higher-output applications where exhaust flow becomes increasingly important.

This isn't a universal exhaust adapted to fit the WRX. Every Function Fab system is fabricated around the vehicle it was designed for.

The Function Fab Difference

Every system is cut, fitted, TIG welded, and finished in-house. We focus on clean transitions, consistent fitment, and quality welds rather than mass-producing a one-size-fits-all system.

The result is an exhaust that looks like it belongs on the car — because it was built specifically for it.

Fitment: 2022+ Subaru WRX (VB chassis)

Material: 3.5" 304 stainless steel

Construction: TIG welded

Application: Performance / track-oriented use

Manufactured by Function Fab — Connecticut, USA