MST 2022+ Honda Civic Si / Acura Integra 1.5T Cold Air Intake System (HD-CI1503)
Cold Air Intake System
for 2022+ Honda Civic Si / Acura Integra 1.5T
HD-CI1503
2022+ Civic Si / Acura Integra 1.5T • Cold Air Intake • Direct Bolt-On
Overview
The MST Performance HD-CI1503 is a high-flow cold air intake system designed for the 11th-generation 2022+ Honda Civic Si and 2023+ Acura Integra, both equipped with the L15CA 1.5L turbocharged engine. It replaces the restrictive factory airbox with a heat-shielded high-flow induction system that improves throttle response and unlocks the signature turbocharged intake sound enthusiasts are after.
Engineered as a direct bolt-on upgrade, the HD-CI1503 fits without modifications and is one of the most affordable performance upgrades available for the platform. Pair with a tune for additional gains, or run it stock for improved daily driving feel and engine character.
Key Features
- Designed for the L15CA 1.5L turbocharged engine
- Heat-shielded enclosure isolates filter from engine bay heat
- MST high-flow washable, reusable performance air filter
- Improved throttle response and turbo spool feel
- Aggressive turbocharged intake sound
- Direct bolt-on installation
Fitment
- 2022+ Honda Civic Si (FE1 — L15CA 1.5T)
- 2023+ Acura Integra (DE — L15CA 1.5T)
What's Included
- MST HD-CI1503 Intake Pipe Assembly
- MST High-Flow Performance Air Filter
- Heat shield
- Couplers, clamps, and mounting hardware
Part Information
| Field | Detail |
|---|---|
| Part Number | HD-CI1503 |
| Brand | MST Performance |
| Product Type | Air Intake |
| Engine | L15CA |
| Make | Honda |