High Flow Exhaust Downpipe for Honda 17-23+ Civic Type R FK8 & FL5 / 23+ Integra Type S DE5
*** IMPORTANT NOTE: Order processing can take up to 1-2 business days. Shipping timeframes start after the order processing has been completed. ***
Note: We cannot ship this Item to California.
California emissions notice: NOT LEGAL FOR SALE OR USE IN CALIFORNIA. This product has not been granted a California Air Resources Board (CARB) and EPA Executive Order for the applications listed. Orders for this product cannot be shipped to a California address.
Unlock the full potential of your K20C1-powered platform with this Catless Exhaust Downpipe Upgrade. Designed for the 2017–2021 Civic Type R (FK8), 2023+ Civic Type R (FL5), and 2023+ Acura Integra Type S (DE5), this downpipe delivers maximum exhaust flow, reduced backpressure, and faster turbo response.
Constructed from high-quality T304 stainless steel with smooth mandrel bends and precision TIG welds, it’s built to handle extreme heat and performance demands. The CNC-machined turbo flange ensures a perfect fit with OEM and aftermarket turbos, while retaining factory O2 sensor locations for proper ECU function.
This is a true bolt-on upgrade no cutting or welding required and pairs perfectly with a high-flow front pipe and proper ECU tuning for maximum gains.
Performance Gains:
- +15–25 HP on stock tune
- Up to +40+ HP with tuning
Key Benefits:
- Increased horsepower & torque
- Faster turbo spool
- Improved exhaust flow
- Direct bolt-on installation
Fitment:
- 2017–2021 Honda Civic Type R (FK8)
- 2023+ Honda Civic Type R (FL5)
- 2023+ Acura Integra Type S (DE5)
⚠️ For off-road and track use only. Not emissions compliant in all areas.
