MST Catted Downpipe for 2017+ Honda Civic Type R FK8 / FL5 (HD-TPR03)
Catted Downpipe
for 2017+ Honda Civic Type R FK8 / FL5
HD-TPR03
FK8 / FL5 Civic Type R • Catted Downpipe • K20C1 Platform
Overview
The MST Performance HD-TPR03 is a high-flow catted downpipe designed for both the 10th-generation Honda Civic Type R FK8 (2017-2021) and the 11th-generation FL5 (2022-2026), both powered by the K20C1 2.0L turbocharged engine. Featuring a high-flow metallic catalytic converter, this downpipe dramatically reduces exhaust restriction while maintaining catalytic emissions function.
The factory downpipe on the K20C1 is a known restriction point on tuned cars. The HD-TPR03 eliminates that bottleneck and unlocks meaningful gains when paired with a Stage 1 or Stage 2 tune, with significantly improved turbo response and a more aggressive exhaust note.
Key Features
- Fits both FK8 (2017-2021) and FL5 (2022-2026) Civic Type R
- High-flow metallic catalytic converter
- Significant reduction in exhaust backpressure vs. factory unit
- Stainless steel construction with TIG-welded joints
- Pairs with Stage 1 and Stage 2 tunes for full power potential
- OE-style flanges for direct bolt-on fitment
- Improved turbo response and exhaust note
Fitment
- 2017-2021 Honda Civic Type R FK8 (K20C1 2.0T)
- 2022-2026 Honda Civic Type R FL5 (K20C1 2.0T)
What's Included
- MST HD-TPR03 Catted Downpipe Assembly
- High-flow metallic catalytic converter (installed)
- Gaskets and required hardware
Part Information
| Field | Detail |
|---|---|
| Part Number | HD-TPR03 |
| Brand | MST Performance |
| Product Type | Catted Downpipe |
| Engine | K20C1 |
| Make | Honda |