APEXi N1 Evo Extreme Dual Exit Axleback System - 2022+ Subaru WRX

The A’PEXi N1-X Evolution Extreme is built on the proven N1 straight-through architecture to prioritize exhaust efficiency and response. An internal hybrid silencer unites free-flow performance with tuned resonance for a refined, streetable tone. Newly designed dual tips feature a rolled, riveted double-pipe structure crafted from lightweight titanium, acting as a diffuser to help reduce tip surface temperatures while delivering a motorsport-inspired heat gradation finish.

Key Features

• Straight-Through Design: Optimizes flow and throttle response on the FA24F turbo engine.
• Hybrid Silencer: Balances free-flow characteristics with effective sound tuning for daily use.
• Megaphone Piping Structure: A’PEXi’s patented design promotes a swirling exhaust flow to enhance torque across the power-band.
• Premium Materials: TIG-welded SUS304 stainless steel with TP270 grade titanium tips.
• Chassis-Matched Fitment: Engineered for the VB WRX with manual or automatic transmission.
• Bolt-On Installation: Designed to mount to factory locations; no cutting or welding required.

N1-X Evolution Extreme Exhaust - 2022+ Subaru WRX (VB)

Why We Like It

N1-X brings classic A’PEXi urgency with modern civility. You get crisp response and a deep, composed tone in cruise, with an assertive note under load—without the harshness.

Specifications

• Exhaust Type: N1-X Evolution Extreme Muffler (Axle-back style assembly)
• Piping Diameter: 60 mm × 2
• Tip Diameter: 123 mm × 2
• Pieces: 2
• Exhaust Tip Style: Titanium, dual-wall rolled, angle-cut (riveted)
• Piping Material: SUS304 stainless steel
• Muffler Material: SUS304 stainless steel
• Muffler Tip Material: TP270 grade titanium
• Bolt-On: Yes

Installation Notes

• Direct bolt-on to factory mounting points; reuse OEM hangers.
• Verify gasket seating and fastener torque for a leak-free seal.
• Professional installation recommended for optimal alignment.

What’s in the Box

• N1-X Evolution Extreme left and right muffler sections
• Gaskets and hardware (as supplied by manufacturer)
• Basic instructions

Compatibility & Disclaimers

Designed for the VB-chassis WRX with FA24F engine. In some regions, exhaust modifications may be restricted for on-road use. Check local noise and emissions regulations before installation.