Invidia N1 Single Exit Cat Back Exhaust - Titanium Tip - 2008-2014 Subaru WRX Sedan / 2011-2014 STI Sedan

The N1: Invidia's Benchmark Cat-Back for the GR WRX/STI

The Invidia N1 Single Exit Cat-Back Exhaust with Titanium Tip for the 2008-2014 Subaru WRX / STI is one of the most proven aftermarket exhaust systems on Subaru platforms — SUS304 stainless construction, 3-inch mandrel-bent piping, CNC-machined flanges, and direct bolt-in at OEM hanger locations. The N1 sound profile is the boxer burble and top-end bark that WRX and STI owners recognize immediately — aggressive without being unlivable on the street. Silencer included for days when you need to dial it back.

SUS304 Stainless, Mandrel Bends, CNC Flanges

Every Invidia N1 cat-back is built from SUS304 stainless steel with mandrel bends throughout — a process that maintains the full 3-inch internal diameter through every curve in the system. CNC-machined flanges at every connection point ensure flat, leak-free sealing. The exhaust hangers are welded directly at OEM hanger locations, so the system sits in the correct position without fitment adjustment at installation.

Included Silencer — Two Volume Settings in One System

The included silencer inserts into the exit tip to reduce sound output for commuting, city driving, or events with noise limits — remove it for the full N1 sound character when the situation allows. Most cat-backs offer one sound level; the N1 with silencer gives you two. The N1 connects at the OEM downpipe flange and runs to the factory tip exit location on the GR WRX/STI using the factory hanger positions. No modification required — new gaskets and hardware are included.

Key Features

• Platform: 2008-2014 Subaru WRX / STI
• SUS304 stainless steel construction
• 3-inch mandrel-bent piping — full diameter maintained at every bend
• Single exit — Titanium tip
• CNC-machined flanges — flat, leak-free sealing at all connection points
• Exhaust hangers welded at OEM locations — direct bolt-in fitment
• Silencer included — adjustable sound output
• Improves horsepower, torque, and throttle response
• New gaskets and hardware included

Fitment Notes

• Platform: 2008-2014 Subaru WRX / STI
• Direct bolt-in at OEM downpipe flange and hanger locations
• No modification to the vehicle required
• Sedan fitment — does not fit hatchback body style
• Silencer included for reduced sound output when needed

Straight From Subispeed

The Invidia N1 is consistently the exhaust we recommend to GR WRX/STI owners who want a system that sounds right without becoming a liability on the street. The included silencer is a genuine feature — the option to turn it down without touching hardware is more useful than it sounds when you're dealing with varying real-world situations. New gaskets and hardware are in the box, and the OEM hanger fitment means installation is straightforward.

What's Included

• Invidia N1 cat-back exhaust — single exit
• Titanium exhaust tip
• New gaskets and installation hardware
• Silencer

About Invidia

Invidia is a Taiwanese performance exhaust manufacturer with a strong following in the Subaru, Mitsubishi, and Japanese sports car communities. Their catalog covers cat-back exhausts, downpipes, headers, manifolds, and full exhaust systems built around SUS304 stainless steel construction with CNC-machined flanges and direct OEM fitment. Invidia exhausts are among the most widely installed aftermarket systems on Subaru platforms globally — well-documented, well-supported, and proven across thousands of street and track builds. Subispeed carries the full Invidia lineup because their combination of quality construction, fitment accuracy, and range of tip and finish options makes them the exhaust brand we recommend to Subaru owners at nearly every power level.