Invidia Exhaust for Honda Civic Si FE1 (2022-2026) Catback - N1 or Q300

Fitment Information

• Honda Civic Si FE1 (2022, 2023, 2024, 2025, 2026) 

Emissions Information

• This is a catback exhaust and does not alter, remove or replace any emissions equipment.

Specs & Features

• Exhaust Options:
  • N1 Track-Ready Aggression:
    • Features raw, high-flow canister-style mufflers that deliver an unapologetically loud exhaust note, complete with removable silencers for when you need to fly under the radar.
    • Dial in your rear bumper by choosing between the classic dual 101mm (4") polished stainless steel tips or upgrading to the eye-catching burnt blue titanium finish.
  • Q300 Daily-Driver Refinement:
    • Ditches the loud canisters for a highly tuned flat-bottom muffler and mid-pipe resonator, guaranteeing a deep, sporty tone with absolutely zero annoying cabin drone.
    • The Q300 finishes strong with massive dual 110mm (4.33") rolled stainless steel tips that fill out the factory bumper cutouts perfectly for a mature, enhanced factory appearance.
• Maximum Exhaust Flow: Every setup utilizes premium 70mm (2.75") mandrel-bent SUS304 stainless steel piping to drastically cut backpressure and unlock hidden horsepower.

Product Description

Your factory exhaust is a massive bottleneck, specifically engineered to keep things quiet at the expense of true performance and driving emotion. Swapping to an Invidia Cat-Back Exhaust completely rewrites that narrative, replacing restrictive stock piping with high-flowing 70mm mandrel-bent SUS304 stainless steel that lets the engine finally exhale. If you are chasing maximum volume and a raw, track-inspired vibe, the N1 series is the perfect bolt-on. Its straight-through canister mufflers scream at wide-open throttle, while the massive 4-inch tips—available in polished steel or burnt titanium—give the rear end a menacing stance. On the flip side, if the car is a daily commuter and you despise highway drone, the Q300 series utilizes a clever flat-bottom muffler and built-in resonator to cultivate a mature, deep rumble. Paired with thick 110mm rolled stainless tips, the Q300 delivers an undercover, sophisticated aesthetic that looks just as incredible as it sounds.

You absolutely need one of these setups because driving a capable car that sounds like a sewing machine is a tragic waste of potential. Upgrading the exhaust system isn't just about turning heads at a red light; it is about feeling the throttle respond faster and enjoying the visceral, tactile connection to the asphalt that only a precision-tuned exhaust can provide. Invidia has spent years cementing its reputation in the aftermarket tuning community, becoming the go-to manufacturer for enthusiasts who demand flawless fitment, bulletproof construction, and legendary sound profiles. Whether you crave the screaming, high-RPM volume of the N1 or the sophisticated drivability of the Q300, Invidia builds the exact high-performance solution required to let the engine breathe and dominate the streets.