TSP Hibiki Valved Exhaust System for the 2022-2026 Honda Civic Si

The first and only valved exhaust built for the 11th generation Civic Si.

The FE-chassis Civic Si has been on the market for years, and until now there hasn't been a single valved exhaust designed for it. We built the one the platform deserved. When you want it quiet, it's quiet. When you want it loud, it's loud. The Hibiki gives you both without compromise; a genuine dual-personality, dual-exit exhaust that adapts to wherever you're driving and whoever's listening.

One Exhaust, Two Personalities

Hibiki means "resonance"...and that's exactly what this system delivers. A remote-controlled valve lets you switch between a refined, drone-free cruise and a full-volume, aggressive tone on demand. Closed, the valve keeps things civil for early-morning starts, long highway stretches, and rolling through your neighborhood without turning heads. It tames even the loudest aftermarket downpipes; close the valve and the volume drops right down, with no drone on the highway. Open, it lets the Si breathe and bark the way it always should have. There's no tradeoff between a daily driver and a weekend car here! You get both, and you decide which one people hear from the driver's seat, with the push of a button.

Dial In Your Tone

Every Hibiki system ships with both resonated and non-resonated pipe options, so you can tune the character of your Civic to your exact taste. Want a refined, civilized note that's aggressive when you want it but easy to live with every day? Run the resonated pipe. Chasing the loudest, rawest, most aggressive tone the platform can make? Drop in the non-resonated section. It's a level of flexibility most exhausts force you to choose at checkout. With the Hibiki, the choice stays in your garage, and you can change your mind whenever you want. Your car, your sound.

Clean, Permanent Installation

No cheap 12V cigarette-lighter plug hanging off your dash. The Hibiki's controller wires in with a fuse tap, so the install is clean and hidden. A lot of valved systems give you a plug-in module that lives in your cupholder - not this one.

Frontpipe-Back Design

This is a complete frontpipe-back system finished with an aggressive dual-exit layout that gives the Si the rear-end presence to match its tone. 304 stainless steel construction throughout means corrosion resistance and long-term durability you can count on through every season, and 3" mandrel-bent piping keeps flow smooth and unrestricted from the frontpipe all the way out the back. Because it picks up at the frontpipe, the Hibiki pairs perfectly with both factory frontpipes and aftermarket frontpipes. So whether your Si is stock or already on its way to a bigger build, this system slots right in.

Developed on the TSP FE1

This isn't an off-the-shelf design with a new sticker slapped on the box. The Hibiki was developed and tested on the TSP FE1 (our own shop car) so fitment, sound, and flow were dialed in on the real platform, mile after mile. Every bend, hanger, and flange was validated on the actual car, which means when it shows up at your door, it goes on the way it's supposed to and sounds the way we designed it to.

What's in the Box

• Frontpipe → back dual-exit exhaust system
• Resonated and non-resonated midpipes (you choose what's best for your ride)
• Remote control fob
• Valve controller and associated wiring (fuse-tap install)
• Complete hardware kit: bolts, gaskets, nuts, and clamps
• Adjustable exhaust hanger rubber mounts (optional)
  
  
  

Specifications

• Application: 2022-2026 Honda Civic Si
  • 2023+ Acura Integra 1.5T & 2022-2025 Honda Civic 1.5T Non-Si fitment is not confirmed at this time.
  • 2022+ Honda Civic 2.0L NA fitment is not confirmed at this time.   
• System Type: Frontpipe → back, dual-exit
• Material: 304 stainless steel
• Piping: 3" mandrel-bent, tig welded
• Valve: Remote-controlled, fuse-tap wiring
• Pipe Options: Resonated and non-resonated (both included)
• Frontpipe Compatibility: OEM and aftermarket
• Tips: Polished 4"
• Warranty: 1-year