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Street Ready Clutch Control for Civic Si Drivers
Give a manual 2017 to 2021 Honda Civic Si a stronger clutch for demanding street use and occasional track driving. This Stage 3 1MS kit pairs a heavy duty single diaphragm pressure plate with a sprung MIBA Ceramic six puck disc for quicker engagement and a stated capacity of 462 foot pounds at the crank. The exact manufacturer part number is ACR-2191.
Key Features
- Stage 3 1MS clutch kit for the manual transmission Honda Civic Si
- Heavy duty single diaphragm pressure plate for demanding street use
- Sprung MIBA Ceramic six puck friction disc
- Reinforced drive straps for durable clutch disc control
- Fully enclosed spring retainers with a patented design
- Quicker engagement with chatter that minimizes after proper break in
- Stated torque capacity of 462 foot pounds at the crank
- Designed for heavy duty street use and occasional drag, road, or drift racing
- Exact part number ACR-2191 for fitment and order verification
Fitment
| Years | Make | Model | Engine | Transmission | Notes |
|---|---|---|---|---|---|
| 2017 to 2021 | Honda | Civic Si | 1.5L L15B7 turbo | Manual | Turbocharged application |
Verify the manual transmission and 1.5L L15B7 turbo application before ordering.
Specifications
| Detail | Value |
|---|---|
| Product line | Stage 3 1MS |
| Manufacturer | Action Clutch |
| Manufacturer part number | ACR-2191 |
| Friction disc | Sprung MIBA Ceramic six puck |
| Pressure plate | Heavy duty single diaphragm |
| Drive straps | Reinforced |
| Torque capacity | 462 foot pounds at the crank |
| Spring retainers | Fully enclosed patented design |
| Intended use | Heavy duty street use and occasional drag, road, or drift racing |
| Break in | 500 street miles with engine speed under 4500 RPM, no more than half throttle, and no boost when applicable |
What's Included
- One sprung MIBA Ceramic six puck clutch disc
- One heavy duty single diaphragm pressure plate
- One pilot bearing or bushing when applicable
- One clutch alignment tool
About Action Clutch
Action Clutch develops performance clutch and flywheel systems for street, track, and race applications. Its staged kits use application specific friction and pressure plate combinations to balance engagement, durability, and vehicle use. Identify the correct replacement by confirming ACR-2191 against the vehicle and transmission before purchase.
FAQ
What is the ACR-2191?It is a Stage 3 1MS clutch kit for a manual transmission Honda Civic Si with a 1.5L L15B7 turbo engine.
What vehicles fit this clutch kit?It fits the 2017 to 2021 Honda Civic Si with the 1.5L L15B7 turbo engine and a manual transmission.
Is this kit compatible with an automatic transmission?No. The verified application is for the manual transmission Civic Si.
What friction disc is included?The kit includes a sprung MIBA Ceramic six puck disc.
What torque capacity is stated?The stated capacity is 462 foot pounds at the crank.
Does the kit include a flywheel?A flywheel is not listed among the confirmed package components. Inspect the existing flywheel and replace or resurface it as appropriate for the installation.
What is the break in procedure?Drive for 500 street miles with engine speed under 4500 RPM, use no more than half throttle, and avoid boost when applicable.
Is this clutch suitable for daily driving?It is designed for heavy duty street use and occasional drag, road, or drift racing. Ceramic friction can feel more abrupt than a conventional street disc, and chatter should minimize after proper break in.
What warranty coverage should I expect?Confirm the current warranty coverage and terms with the seller before ordering, because the applicable details can depend on the purchase and installation conditions.
Installation Instructions
- Confirm the replacement kit is ACR-2191 and verify that the vehicle has a manual transmission.
- Disconnect the battery and place the vehicle securely on approved supports.
- Remove the transmission and retain only hardware that remains serviceable.
- Inspect the flywheel, crankshaft flange, pilot bearing or bushing, release system, and transmission input shaft for wear.
- Resurface or replace the flywheel when its condition requires it, then clean all friction surfaces.
- Position the clutch disc with the correct orientation and use the supplied alignment tool.
- Install the pressure plate and tighten its fasteners evenly in a crisscross sequence.
- Torque all fasteners to the vehicle or component manufacturer specifications.
- Reinstall the transmission without forcing the input shaft into alignment.
- Reconnect the release system and battery, then check pedal operation before starting the engine.
- Complete 500 street miles of break in with engine speed under 4500 RPM, no more than half throttle, and no boost when applicable.
Prop 65 Warning
WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
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