Aeroflow Performance titanium studs are 45% lighter and stronger than your regular steel stud and nut combo you find at your local bolt shop. The high strength and super lightweight Titanium 6Al-4V grade (Grade 5) studs are the perfect replacement for turbo manifolds, exhaust headers or intakes. The use of factory OEM bolts and studs they can result in stripped or broken bolts and inadequate clamping force, resulting in leaks. Aeroflow Performance titanium stud and nut combo incorporates a hex key tip that allows them to be easily installed using an Allen wrench. Titanium 6-point single hex nuts and washers are included. These specific header stud kits are designed to suit a individual engine type and sold as a complete kit.