QA1 Tubular K-Member (MUK02) - 1987-2004 Mustang
Upgrade your Mustang’s performance and reduce weight with the QA1 Tubular K-Member, designed for 1987-2004 models including wide track Fox and SN95 applications. This bolt-in K-member improves suspension geometry while providing additional clearance for headers and engine swaps, making it an ideal foundation for performance builds.
Constructed from high-strength, low-alloy steel, this K-member is engineered to be up to 50 percent lighter than the factory unit while maintaining strength and rigidity. The optimized design improves Ackerman, anti-dive, and roll center geometry, delivering better handling and stability, especially on lowered vehicles.
Designed with versatility in mind, this K-member allows for easy engine swaps with modular mounting options. Whether you are running a traditional 5.0L or upgrading to a modern Coyote engine, QA1 offers compatible bolt-in mounts to simplify the process.
Features
- Tubular K-member for 1987-2004 Mustang (wide track Fox and SN95)
- Up to 50 percent lighter than factory crossmember
- Constructed from high-strength low-alloy steel for durability
- Improves suspension geometry including Ackerman, anti-dive, and roll center
- Increased clearance for headers and engine swaps
- Compatible with multiple engine configurations using QA1 mounts
- Designed for use with QA1 Proma Star coilover struts
- Bolt-in installation with no welding required
- Helps reduce overall vehicle weight for improved performance
- Manufactured in the USA
Additional Notes
- Engine mounts sold separately
- Requires coilover struts, not compatible with factory coil springs
- QA1 control arms strongly recommended for best performance
- Designed for wide track Fox and SN95 applications
Fitment
- 1987 Ford Mustang
- 1988 Ford Mustang
- 1989 Ford Mustang
- 1990 Ford Mustang
- 1991 Ford Mustang
- 1992 Ford Mustang
- 1993 Ford Mustang
- 1994 Ford Mustang
- 1995 Ford Mustang
- 1996 Ford Mustang
- 1997 Ford Mustang
- 1998 Ford Mustang
- 1999 Ford Mustang
- 2000 Ford Mustang
- 2001 Ford Mustang
- 2002 Ford Mustang
- 2003 Ford Mustang
- 2004 Ford Mustang
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

