The Exedy HF501 Lightweight Flywheel is engineered for high-performance use, delivering reduced weight and inertia to improve engine response and acceleration. Built from a single piece of billet chromoly steel, it offers exceptional durability and consistent performance under demanding driving conditions.
Unlike aluminum alternatives with pressed-on ring gears, the HF501 integrates the ring gear directly into the flywheel, eliminating separation risks and ensuring long-term reliability. Tested to withstand up to 18,000 RPM and SFI approved, this flywheel is suitable for lightly tuned racing cars, drag racing, autocross, rally events, and spirited street driving.
Weighing significantly less than stock, the HF501 promotes quicker throttle response and smoother power delivery. Its airflow and cooling design helps maintain stable operating temperatures during aggressive driving. With a 6-bolt mounting pattern, it provides a secure and straightforward installation for compatible Honda Civic models from 1988 to 1991, as well as select CRX and Civic del Sol applications.
Features:
- Lightweight construction reduces engine inertia for quicker response
- Made from one-piece billet chromoly steel for durability
- Integrated ring gear teeth prevent separation and ensure reliable clutch engagement
- Designed for high-RPM performance, tested up to 18,000 RPM
- Optimized airflow and cooling features for thermal management
- Compatible with 1988-1991 Honda Civic models
- 6-bolt mounting pattern for secure fit and ease of installation
Fitment: 
1988 Honda Civic Base 
1988 Honda Civic DX 
1988 Honda Civic LX 
1988 Honda Civic Wagovan 
1988 Honda CRX Si 
1989 Honda Civic Base 
1989 Honda Civic DX 
1989 Honda Civic LX 
1989 Honda Civic Wagovan 
1989 Honda CRX Base 
1989 Honda CRX Si 
1990 Honda Civic Base 
1990 Honda Civic DX 
1990 Honda Civic EX 
1990 Honda Civic LX 
1990 Honda Civic RT 4WD 
1990 Honda Civic Si 
1990 Honda CRX Base 
1990 Honda CRX HF 
1990 Honda CRX Si 
1991 Honda Civic Base 
1991 Honda Civic DX 
1991 Honda Civic EX 
1991 Honda Civic LX 
1991 Honda Civic RT 4WD 
1991 Honda Civic Si 
1991 Honda CRX Base 
1991 Honda CRX HF 
1991 Honda CRX Si 
1992 Honda Civic CX 
1992 Honda Civic DX 
1992 Honda Civic EX 
1992 Honda Civic LX 
1992 Honda Civic Si 
1992 Honda Civic VX 
1993 Honda Civic CX 
1993 Honda Civic DX 
1993 Honda Civic EX 
1993 Honda Civic LX 
1993 Honda Civic Si 
1993 Honda Civic VX 
1993 Honda Civic del Sol S 
1993 Honda Civic del Sol Si 
1994 Honda Civic CX 
1994 Honda Civic DX 
1994 Honda Civic EX 
1994 Honda Civic LX 
1994 Honda Civic Si 
1994 Honda Civic VX 
1994 Honda Civic del Sol S 
1994 Honda Civic del Sol Si 
1995 Honda Civic CX 
1995 Honda Civic DX 
1995 Honda Civic EX 
1995 Honda Civic LX 
1995 Honda Civic Si 
1995 Honda Civic VX 
1995 Honda Civic del Sol S 
1995 Honda Civic del Sol Si 
1996 Honda Civic CX 
1996 Honda Civic DX 
1996 Honda Civic EX 
1996 Honda Civic HX 
1996 Honda Civic LX 
1996 Honda Civic del Sol S 
1996 Honda Civic del Sol Si 
1997 Honda Civic CX 
1997 Honda Civic DX 
1997 Honda Civic EX 
1997 Honda Civic HX 
1997 Honda Civic LX 
1997 Honda Civic del Sol S 
1997 Honda Civic del Sol Si 
1998 Honda Civic CX 
1998 Honda Civic DX 
1998 Honda Civic EX 
1998 Honda Civic GX 
1998 Honda Civic HX 
1998 Honda Civic LX 
1999 Honda Civic CX 
1999 Honda Civic DX 
1999 Honda Civic EX 
1999 Honda Civic GX 
1999 Honda Civic HX 
1999 Honda Civic LX 
1999 Honda Civic Si 
1999 Honda Civic Value Package 
2000 Honda Civic CX 
2000 Honda Civic DX 
2000 Honda Civic EX 
2000 Honda Civic GX 
2000 Honda Civic HX 
2000 Honda Civic LX 
2000 Honda Civic Si 
2001 Honda Civic DX 
2001 Honda Civic EX 
2001 Honda Civic GX 
2001 Honda Civic HX 
2001 Honda Civic LX 
2002 Honda Civic DX 
2002 Honda Civic EX 
2002 Honda Civic GX 
2002 Honda Civic HX 
2002 Honda Civic LX 
2003 Honda Civic DX 
2003 Honda Civic EX 
2003 Honda Civic GX 
2003 Honda Civic HX 
2003 Honda Civic LX 
2004 Honda Civic DX 
2004 Honda Civic EX 
2004 Honda Civic GX 
2004 Honda Civic HX 
2004 Honda Civic LX 
2004 Honda Civic Value Package 
2005 Honda Civic DX 
2005 Honda Civic EX 
2005 Honda Civic EX Special Edition 
2005 Honda Civic GX 
2005 Honda Civic HX 
2005 Honda Civic LX 
2005 Honda Civic LX Special Edition 
2005 Honda Civic Value Package