Action Clutch ACR-2190 Stage 2 Clutch Kit 2017-2021 Honda Civic Si 1.5L L15B7

Vehicle Fitment

• 2017-2021 Honda Civic Si - 1.5L DOHC Turbocharged (L15B7); 6-Speed Manual Transmission

Fitment Notes

• Fits the tenth-generation Honda Civic Si (FC1 coupe and FC3 sedan, 2017-2021) equipped with the L15B7 1.5L turbocharged engine and 6-speed manual transmission - does NOT fit the 2022+ Civic Si (eleventh generation), which uses a different clutch configuration and requires a separate Action Clutch SKU
• A flywheel is required for installation - the ACR-2190 does not include a flywheel; the existing factory flywheel must be resurfaced before installation, or a compatible performance flywheel must be sourced separately; failure to resurface the flywheel will void the product warranty
• The 10th-generation Civic Si uses a single-mass flywheel from the factory - this kit is designed to work with the OEM single-mass flywheel or an aftermarket equivalent; verify your existing flywheel condition before installation
• Contact Action Clutch before ordering if uncertain about stage selection for your specific power level - the Stage 2 Super Copper is ideally suited for stock to moderately bolt-on 1.5T Civic Si builds; higher-stage ceramic kits (Stage 3+) are available for more aggressive power levels
• This item is a replacement/service part and is non-returnable and non-refundable unless the product arrives defective.

Features

• Stage 2 (1SC) Super Copper organic disc - the Super Copper series is Action Clutch's premium organic clutch offering, built with the highest copper content of any organic disc in their lineup; the copper-loaded organic material provides meaningfully better grip, heat tolerance, and consistent performance compared to standard organic friction materials, while preserving the smooth, daily-drivable engagement character that makes the Civic Si practical for everyday use and traffic driving; the Super Copper is specifically designed for daily-driven, bolt-on, and tuned L15B7 builds that want more than stock without sacrificing street drivability
• Steel-backed copper-loaded organic friction disc with sprung hub - the sprung hub absorbs drivetrain shock at engagement, protecting the 1.5T Civic Si's transmission and differential from abrupt torque spikes at clutch release; the sprung design also contributes to the smooth, progressive pedal feel and linear engagement that characterizes the Super Copper series across the full engagement window
• Single diaphragm heavy-duty pressure plate - applies greater clamping force than the factory unit, increasing torque capacity to accommodate L15B7 builds with aftermarket intake, intercooler, exhaust, and an Accessport or KTuner tune, while maintaining a pedal weight and feel that remains comfortable during daily driving
• Patented fully enclosed spring retainers - Action Clutch's proprietary enclosed retainer design prevents springs from ejecting during use; spring ejection can cause catastrophic damage to the transmission and engine, and the enclosed design eliminates this risk that is present in competing clutch kits
• American-grade rivets - both the pressure plate and clutch disc use American-grade rivets throughout for maximum strength and resistance to loosening under repeated thermal cycling and engagement loads
• SFI Spec 1.1 certified - meets SFI Foundation specification 1.1 for replacement flywheels and clutch assemblies
• Individually quality checked - every kit is assembled and signed off by Action Clutch's engineering team (over 60 years of combined experience) before release as a finished product

Specifications

• Part Number: ACR-2190
• Stage: 2 (1SC - Single Disc, Super Copper Organic)
• Disc Type: Super Copper-Loaded Organic, Steel-Backed, Sprung Hub
• Pressure Plate Type: Single Diaphragm Heavy-Duty
• Intended Use: Daily driving, street performance, bolt-on builds, occasional track use
• Flywheel Included: No - must be sourced separately or existing flywheel resurfaced
• SFI Certification: SFI Spec 1.1
• Break-In Required: Yes - 500 street miles minimum; RPMs under 4,500; no more than half-throttle; no boost during break-in
• Price: $675.62

Included Components

• 1x Super Copper Organic Clutch Disc (sprung hub, steel-backed)
• 1x Single Diaphragm Heavy-Duty Pressure Plate
• 1x Conventional Release Bearing
• 1x Pilot Bearing / Bushing (when applicable)
• 1x Clutch Alignment Tool
• Note: Flywheel is NOT included - must be sourced separately or existing flywheel resurfaced before installation

Product Description

The Action Clutch ACR-2190 is a Stage 2 (1SC) Super Copper clutch kit for the 2017-2021 Honda Civic Si equipped with the L15B7 1.5L turbocharged engine and 6-speed manual transmission. It is built around Action Clutch's Super Copper organic disc - a copper-loaded, steel-backed, sprung design that delivers more grip and heat resistance than the factory clutch while preserving the smooth, daily-drivable engagement that makes the Civic Si practical in traffic and on commutes.

The Stage 2 Super Copper positions above the Stage 1 organic kit in holding capacity and heat tolerance, making it the natural choice for 10th-gen Civic Si owners who have added bolt-ons (intake, intercooler, exhaust, downpipe) and a tune, and whose stock clutch is beginning to show slip or inconsistency under hard acceleration. The copper-loaded organic friction material provides consistent bite across a wide temperature range without introducing the chatter or engagement harshness associated with ceramic disc designs, and the sprung hub protects the 6-speed transmission's synchros and gears from abrupt engagement loads during daily driving and spirited street use.

The factory Civic Si flywheel must be resurfaced or replaced at the time of installation - a flywheel is not included. A 500-mile street break-in is required before hard use. This item is non-returnable and non-refundable unless the product arrives defective. SFI Spec 1.1 certified. Backed by Action Clutch's 1-year limited manufacturer defect warranty.