PRODUCT DETAILS
Full-Race 8th Gen Honda Civic Si Catback Exhaust System (FG2 / FA5)
If you want a legit 2006 Civic Si exhaust that fits right and flows, this Full Race Civic Si exhaust is the move for FG2 coupe and FA5 sedan cars. It’s a Civic Si stainless catback built from T304 stainless and finished as a Full Race polished exhaust, so it holds up to years of heat cycles and still looks good when you’re under the car. No fluff, it’s a purpose built 8th gen Civic Si catback for people who actually drive their cars hard.
Full-Race uses a straight through layout and V band connections, which means less restriction and fewer annoying leaks compared to slip fit joints. On a stock or lightly modded Civic Si VTEC exhaust setup, you’ll feel the better throttle response up top, and once you go forced induction it matters even more. This system works as a Civic Si turbo exhaust or supercharged setup because it helps drop backpressure, so your turbo spools sooner and carries power longer. You can choose a Civic Si 2.5 inch exhaust flange or step up to a Civic Si 3.0 inch catback flange depending on your header or downpipe. If you’re shopping for a 2011 Civic Si catback, this covers that too.
Fitment stays simple. This Honda Civic Si performance exhaust bolts to aftermarket race headers, Full-Race turbo downpipes, or you can adapt it to OEM style setups with the right reducer. Sound wise, it stays clean and controlled, not the raspy tin can vibe. You still get a real Civic Si power gain exhaust feel without making your commute miserable, and yes, we run these exact parts on our own cars because we hate drone as much as you do.
Please note the size option is for the adapter pipe. This is what helps the catback exhaust mate to different types of headers. All Full Race exhausts are 3" exhaust systems.
Key Features
- Fits 2006 to 2011 Honda Civic Si Coupe FG2 and Sedan FA5, Civic Si coupe catback and Civic Si sedan catback
- Header back 8th gen Civic Si catback layout
- Flange options for Civic Si 2.5 inch exhaust or Civic Si 3.0 inch catback
- Civic Si T304 stainless exhaust construction, this is a Civic Si stainless catback that lasts
- Straight through design for high flow, especially on K20 and K24 VTEC setups
- V band flanges and clamps for quick install and solid sealing
- Supports all motor builds and shines as a Civic Si turbo exhaust for better spool and top end
- Sound stays crisp with reduced drone, it’s loud when you’re on it, calm when you’re not
Application Notes
- Some cars need a small rear heat shield tweak during install
- Included gasket targets aftermarket downpipes
- Reuse or replace the OEM crush gasket if you’re mating to the factory downpipe
- Check clearance while you tighten everything down so nothing touches under load
- If your OEM hangers are tired, replace them, sloppy hangers make any exhaust bang around
Options Summary: Chassis FG2 Coupe, FA5 Sedan. Flange Size 2.5 inches, 3.0 inches. SKUs: FLR-CBE-01-06 FG2 2.5 inch, FLR-CBE-01-07 FG2 3.0 inch, FLR-CBE-01-08 FA5 2.5 inch, FLR-CBE-01-09 FA5 3.0 inch.
If you’re building a serious 8th gen Si, this Full-Race Civic Si exhaust gives you the flow, fit, and sound you want without weird compromises. It’s the kind of Honda Civic Si performance exhaust you install once, then stop thinking about, in a good way.