【Anti-rust and Anti-cracked】These Replacement Manifold & Parts are made of aerospace grade 6AL4V titanium. The advantages of titanium alloy are lightweight, corrosion resistance, and high strength, so it will not corrode or rust. They are lighter in weight and very sporty and aggressive in appearance. 【Direct replacement】This exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles. 【Durable construction】Titanium Exhaust Manifold Stud Kit is made of titanium GR5, with high performance and strength, non-faded. 【Specifications】Color:Original;Size：M8x1.25x65mm;weights :12PCS/0.184 kg;A set stud/washer/nut assembly 12PCS weighs only 0.184 kg! These kits include the following: 12PCS M8 x 1.25mm x 65mm titanium studs +12PCS 12-point M8x1.25mm titanium nuts+12PCS M8 titanium washers 【Trustworthy quality】RISON-Titanium has focused on titanium products for ten years. Materia is aerospace-grade titanium， Made of titanium alloy GR5 TI 6AL4V, with high performance and strength, non-faded. RISON-Titanium has focused on titanium products for ten years. RISON-Titanium Universal Exhaust Manifold Titanium Stud Kit is made of aerospace grade 6AL4V titanium. With high performance and strength, the bolt will not break easily,non-faded. lightweight, high strength, and durable. Harder than steel, more resilient than aluminum, resistant to damage, and far superior to organic materials such as stainless steel. Direct Replacement: The kit is made from high-quality components to ensure reliable performance and long life, This kit is a reliable replacement for lost or damaged, or malfunctioning original hardware. This stud kit allows you to properly clamp the exhaust manifold to the cylinder head without sealing problems, rust, and corrosion caused by stud/nut failure.