Remark RK-C1076H-03 Cat-Back Exhaust for 2017-2021 Honda Civic Si

Vehicle Fitment

• 2017-2021 Honda Civic Si (FC3 Coupe & FC1 Sedan, 1.5L turbo, FWD)

Features

• Non-resonated performance cat-back exhaust for 2017-2021 Civic Si
• Mandrel-bent 2.5" neck expanding to 3" stainless piping
• Dual 3.5" high-flow center-out slant cut stainless tips
• High-flow muffler for improved sound and performance
• Hand-crafted TIG welds for strength and quality
• OEM hanger position fitment for direct installation
• Reduced weight compared to factory system for performance gains
• Includes gaskets, hardware, and license plate frame

Specifications

• Part Number: RK-C1076H-03
• Fitment Years: 2017-2021 Honda Civic Si
• Platform: FC3 (Coupe) & FC1 (Sedan)
• Engine: 1.5L turbo Inline-4
• Drivetrain: Front-Wheel Drive (FWD)
• Piping: 2.5" mandrel bent neck to 3" stainless steel
• Tip Dia: Dual 3.5" center-out slant cut stainless
• Mid-Pipe: Non-resonated design
• Material: Full T304 stainless steel

Included Components

• 1x Cat-Back Exhaust Assembly
• 2x 3.5" Center-Out Slant Tips
• 1x High-Flow Muffler
• 1x Set of Installation Gaskets
• 1x Set of Mounting Hardware (bolts/clamps)
• 1x Remark License Plate Frame

Product Description

The Remark RK-C1076H-03 Cat-Back Exhaust System is engineered specifically for 2017-2021 Honda Civic Si models (both coupe and sedan with the 1.5L turbo engine). Designed with T304 stainless steel mandrel-bent piping that expands from a 2.5" inlet to a 3" main section, this non-resonated exhaust enhances exhaust flow and produces a more aggressive, sporty tone without overwhelming drone during daily driving. Enhanced with dual 3.5" center-out slant cut tips, it also improves the rear aesthetics of your Civic Si.

Installation is straightforward with direct bolt-on fitment using factory hanger locations and includes all necessary gaskets, mounting hardware, and a Remark license plate frame for added branding. The system's reduced weight compared to the stock exhaust can contribute to improved throttle response and overall performance. Suitable for enthusiasts seeking an engaging exhaust note and performance feel for both coupe and sedan Civic Si applications from 2017 through 2021.