Upgrade your exhaust manifold hardware with this 12-piece ES75120 exhaust manifold bolt kit. Featuring M8 x 1.25 x 30mm bolts in Grade 10.9 stainless steel, this kit is designed for reliable strength, corrosion resistance, and long service life. It is listed for a wide range of GM LS series engine applications, including popular Chevy and GMC trucks, SUVs, and vans such as Silverado, Suburban, Tahoe, Express, Sierra, Savana, and Yukon. A practical replacement solution for worn, seized, or broken manifold bolts during exhaust manifold or header service.