X Factor is Mevotech's benchmark technology, providing enhancements and quality that are simply beyond OE. X Factor parts are engineered to keep you on the road longer and designed to improve part life, performance, and durability.

• Corrosion resistant coating protects against heat and harsh weather conditions.
• Includes application-specific heat treated hardware which exceeds industry standards and makes installation safer and easier.
• Greaseable design minimizes friction and reduces heat, providing less wear on the bearing and extending service life.
• Engineered polymer boot 6x more durable than industry standard includes bellows to avoid pinching and tearing as ball joint swings.