This Fel-Pro 60854 Exhaust Pipe Flange Gasket replaces Victor Reinz F7520, Victor Reinz F7521, Walker Exhaust 31554, Arvin 521015, Detroit Gasket 132421, General Motors 3523071, General Motors 3527193, General Motors 3545358, MAHLE F7520, MAHLE F7521, Corteco 132421, OEM parts and is perfect for replacement or a performance upgrade. .