New high performance exhaust manifold gaskets. Quanity (2). Works with stock or aftermarket headers. From the assembly line, GM did not use gaskets as they were 2 machined surfaces. Over time, these surfaces warp, corrode and are no longer true, which inevitably creates a leak. The slightest leak can cost you substantial power. These gaskets will correct and seal the flange to the block.
The bottom corner holes are slotted for a painless drop in install.
Unlike the cheap paper gaskets, these are made of a reinforced high temperature graphite composite that will crush for a perfect seal and last a lot longer.
For best results, always make sure both surfaces are clean and true.
Fits all Turbo and Non Turbo Regal applications.