A high-performance muffler that combines both "quietness" and "low exhaust pressure."
**Please inquire before ordering, as this is a special order item. Lead time around 2-3 months**
The full-straight, low-back-pressure design
achieves a 30% reduction in back-pressure compared to the original equipment by adopting a Φ75 pipe and a full-straight structure without any constrictions. The Φ119 titanium tailpipe with the HKS logo creates a sporty rear view.
Sound tuning eliminates unpleasant booming noises,
and the valveless design allows you to enjoy a powerful, sporty sound across the entire range. Furthermore, sound tuning eliminates unpleasant booming noises inside the cabin, creating a comfortable interior space.



| Authentication number | JQR30233117 |
|---|
| Vehicle name | Civic Type R |
|---|---|
| Model | FL5 |
| Engine type | K20C |
| model year | 22/09 - |
| Muffler shape |
Ti (Titan) (LEGAMAX Sports) |
|
|---|---|---|
| Main material | S3/S4L | |
| Tail outer diameter | 119 | |
| Intermediate pipe diameter | 74.7 → 60.5 × 2 (*1) | |
| Proximity exhaust noise | normal | 84 |
| HKS | 93 | |
| Regarding ground clearance when installed (※2) | numerical values | 125mm |
| Target area of the kit | Genuine front under panel | |
| remarks | ||
| HKS product weight | 18.5kg | |
remarks
Includes a dedicated actuator for mounting the original motor.


■Features
- The stock ECU manages output based on torque, so simply changing the muffler will limit the output to the stock value. By combining it with the Power Editor, the stock output becomes 340PS_44.3kg・m, while the LMS version becomes 342PS_44.7kg・m, and the output can be further increased by raising the boost pressure. *Power Editor: 42018-AH013 (for FL5)
- The exhaust pressure is 30% lower than the stock system, and the exhaust efficiency has improved, so further power increases can be expected by using the Power Editor and reprogramming the ECU.


- By eliminating the bulbs, the space where the original bulbs were located can be effectively utilized.
- By increasing the pipe diameter and adopting a straight structure, exhaust pressure is reduced by 30% compared to the original equipment.
-
Original pipe diameter: φ60 → φ50 x 2 (when valve is closed), φ60 x 1 (when valve is open)
LMS pipe diameter: φ74.7 → φ60.5 x 2


Actuator

Actuator + original motor
- While the genuine muffler uses a valve mechanism, this product is valveless.
- The error codes that may arise from the valveless design can be avoided by using the included actuator.
- The included actuator replicates the mechanism of the original valve. By installing the original motor, it operates in the same way as the original valve, so no error codes will occur.
- In the FL5, an error code will be recorded if the original motor spins freely or is removed. *The check engine light will not illuminate.
- By connecting a diagnostic tool to the OBD port and performing a diagnostic check, you can confirm whether or not there are any error codes.
- On-Board Diagnostics (OBD) vehicle inspections are scheduled to begin on October 1, 2024. If an error code is recorded during the inspection, your vehicle may fail the inspection. However, by using the included actuator, no error codes will be recorded, so you can use it with peace of mind even when OBD vehicle inspections begin.
About HKS mufflers
*1: Regarding the intermediate pipe,
the Φ number of the intermediate pipe diameter in the muffler is the Φ number of the thickest part in the structure (excluding the shell and tail outer diameter).
*2: When an HKS muffler is installed, this indicates the smallest clearance between the HKS muffler (all parts included in the kit) and the road surface. Therefore, it may differ from the minimum ground clearance of the vehicle itself.
The data is basically for vehicles with normal suspension, but please note that some data is also included for use with lowering springs or adjustable suspension kits.
Note: Hooks, brackets, and stays are subject to change without notice.
★ Exhaust noise level at idle