Invidia HS22HC6GT1STL N1 Cat-Back Exhaust for 2022+ Honda Civic Sport 2.0L

Vehicle Fitment

• 2022+ Honda Civic Sport Sedan (FE chassis | L20B4 2.0L DOHC i-VTEC Naturally Aspirated)

Fitment Notes

• Compatible with the 11th-generation Honda Civic Sport Sedan equipped with the 2.0L naturally aspirated L20B4 four-cylinder engine. The Civic Sport is the naturally aspirated 2.0L trim in the 11th-gen lineup - distinct from the turbocharged 1.5T trims (EX, Touring, Si).
• Does not fit the 2022+ Honda Civic Si (FE1), which uses a 1.5L turbocharged engine and a different exhaust configuration. For the Civic Si, see the appropriate Invidia application-specific part.
• Does not fit the Honda Civic Hatchback, Civic Type R (FL5), or any other Civic body style - this part is engineered for the Civic Sport Sedan's specific underbody geometry and rear bumper cutout.
• Does not fit any previous-generation Civic, including the 10th-gen (FC/FK chassis, 2016-2021).
• This is a cat-back exhaust system that connects at the factory catalytic converter outlet and replaces all piping, muffler, and tip rearward. The factory catalytic converter is retained - 50-state emissions legal.
• A removable exhaust silencer is included for noise compliance in areas with strict sound ordinances.
• Also available in a Q300 variant (HS22HC6Q31RSL) for owners seeking a more refined, OEM+ sound character. The N1 delivers a more aggressive, high-RPM exhaust note.

Features

• N1 cannon-style muffler is tuned specifically for the 11th-gen Civic Sport's L20B4 2.0L naturally aspirated engine - delivering the N1's signature aggressive exhaust note with a pronounced mid-to-high RPM character that builds naturally with the L20B4's VTEC crossover
• 60mm (2.36") mandrel-bent SUS304 stainless steel piping provides a smooth, unrestricted exhaust flow path versus the factory system's smaller-diameter, press-bent routing - reducing back pressure for improved mid-to-top-end power and a more responsive throttle on the naturally aspirated 2.0L
• Single 101mm (4") burnt titanium blue tip provides a premium, high-contrast visual upgrade at the Civic Sport Sedan's rear bumper - the titanium tip develops a deep blue and purple heat-patina with use, adding a refined, race-inspired aesthetic to the 11th-gen Civic's clean rear styling
• Removable exhaust silencer included - insert for late-night driving, noise-restricted environments, or when a more subdued sound profile is preferred; remove for full N1 sound character
• CNC machined flanges at all connection points ensure precise, leak-free sealing and a secure bolt-on fit using all factory mounting points
• New gaskets and all necessary hardware included for a complete bolt-on installation
• Robot TIG welded construction provides consistent, high-strength welds throughout the system
• SUS304 stainless steel piping provides long-term corrosion resistance and a polished finish that maintains its appearance over years of use
• 50-state emissions legal - connects after the factory catalytic converter, which is retained
• Manufactured in Japan by Invidia
• Covered by Invidia's 1-year manufacturer warranty against defects in material and workmanship

Specifications

• Part Number: HS22HC6GT1STL
• Brand: Invidia
• Series: N1
• System Type: Cat-Back
• Application: 2022+ Honda Civic Sport Sedan (FE | L20B4 2.0L DOHC i-VTEC N/A)
• Piping Material: SUS304 Stainless Steel
• Piping Construction: Mandrel-Bent
• Main Piping Diameter: 60mm (2.36")
• Muffler Style: N1 Cannon (Resonated)
• Exit Configuration: Single Rear Exit
• Tip Material: Titanium
• Tip Finish: Burnt Blue
• Tip Diameter: 101mm (4")
• Tip Quantity: 1
• Flange Type: CNC Machined
• Silencer: Removable silencer included
• Hardware: New gaskets and hardware included
• Emissions: 50-State Legal (cat-back, retains factory catalytic converter)
• Warranty: 1-Year Manufacturer Warranty
• Made in Japan

Included Components

• 1x Mandrel-Bent 60mm SUS304 Stainless Steel Midpipe
• 1x N1 Cannon-Style Muffler with 101mm Burnt Titanium Blue Tip
• 1x Removable Exhaust Silencer
• New Gaskets and Complete Hardware Kit
• Installation Instructions

Product Description

The Invidia HS22HC6GT1STL is an N1 series cat-back exhaust system designed specifically for the 2022+ Honda Civic Sport Sedan (FE chassis) equipped with the 2.0L naturally aspirated L20B4 engine. It replaces the factory exhaust from the catalytic converter back with 60mm mandrel-bent SUS304 stainless steel piping and an N1 cannon-style muffler capped with a single 101mm burnt titanium blue tip - delivering the Invidia N1's signature aggressive exhaust character on the 11th-generation Civic Sport platform. 50-state legal.

The trim distinction matters for ordering: the 2022+ Civic lineup splits between the naturally aspirated 2.0L Sport trim and the turbocharged 1.5L EX, Touring, and Si trims - these use different engine configurations and different exhaust outlet geometries. The HS22HC6GT1STL is engineered specifically for the Sport's 2.0L NA layout. Civic Si owners should look at the dedicated Invidia Civic Si application. Civic Type R (FL5) owners have their own Invidia application as well.

The N1's cannon muffler is internally tuned for the L20B4's exhaust pulse characteristics - producing a pronounced, revvy exhaust note that builds with the VTEC crossover and comes alive at high RPM, transforming the naturally aspirated Civic Sport's relatively subdued factory exhaust note into something genuinely engaging. The included removable silencer provides practical flexibility for noise-restricted environments. The 101mm burnt titanium tip develops a rich blue-purple patina with heat exposure over time, adding a distinctive premium visual element to the Civic Sport's rear bumper. Made in Japan and covered by Invidia's 1-year manufacturer warranty.