Thermal R&D 2022+ Honda Civic Si - Front Pipe Back Exhaust w/ Polished Tips — browse the fitment information, specifications, and available configurations below to select the correct front pipe back exhaust systems for your build.

2022+ Honda Civic Si Front Pipe Back Exhaust System

The 11th-generation Honda Civic Si (FE1/FE2) returned with a turbocharged 1.5L L15CA engine, a proper 6-speed manual, and a platform that finally deserves a serious exhaust upgrade. Thermal R&D has been engineering performance exhaust systems for Honda and other compact platforms since the early 90s — so when the new Si launched, building a front pipe back system for it was personal. The result is a complete 2.5" T304 stainless steel exhaust system engineered specifically for the Civic Si's unique exhaust path, tuned for an aggressive, refined tone without drone, and designed as a true bolt-on replacement that uses every factory mounting point.

Key Features:

• Lifetime Warranty Backs Every System We Build
• 2.5" T304 Stainless Mandrel-Bent Tubing For Maximum Exhaust Flow And A Drone-Free Aggressive Sound
• True Helmholtz Technology Cancels Resonant Drone At The Source — Not By Choking Flow
• Internal Helmholtz Chambers For Reduced Weight And A Cleaner, Simpler Install
• High-End Compression Clamps For Maximum Adjustability And Easy Future Maintenance
• Full Polished Tips — Direct Fit To The Factory Bumper, No Gaps, No Adapters
• Direct Bolt-On Installation Using Factory Mounting Points — No Cutting, No Welding Required
• Manufactured In The USA

Every bend in this system is precision mandrel-bent to keep exhaust velocity consistent from the front pipe all the way through to the polished tips. The Helmholtz resonance chambers are integrated internally — meaning no external muffler cans to add weight or clutter the undercarriage. The result is straight-through flow with resonance control built into the pipe geometry itself: an aggressive, high-revving tone under hard acceleration that stays composed and controlled at highway cruise.

The full polished tips are engineered to fit flush with the factory rear bumper on the 2022+ Civic Si — no gaps, no visible adapters, no trimming required. Looking for a stealthier look? This system is also available with black coated tips.

If you're upgrading your 2022, 2023, 2024, or 2025 Honda Civic Si exhaust, this front pipe back system is the definitive solution — engineered from the ground up for the FE1/FE2 chassis and backed by a lifetime manufacturer's warranty.

System Specifications

• Fits: 2022, 2023, 2024, 2025+ Honda Civic Si — 11th Gen (FE1/FE2 Chassis) — L15CA 1.5T Turbocharged Engine
• Tubing: 2.5" T304 Stainless Steel, Mandrel-Bent
• Finish: Full Polished Tips
• Resonance Control: True Helmholtz Technology With Internal Helmholtz Chambers
• Clamps: High-End Compression Clamps For Maximum Adjustability
• Installation: Direct Bolt-On Using Factory Mounting Points — No Cutting Or Welding
• Origin: Manufactured In The USA
• Warranty: Lifetime Manufacturer's Warranty

Manufacturer part number: B192-C192. Confirm the vehicle, engine, cab/bed configuration, and finish where applicable before ordering.