Michigan Motorsports LS Multi-Layer Steel (MLS) Header Manifold Exhaust Gasket | Direct Replacement for GM 12617944 | High-Performance Seal for LS1 LS2 LS3 LS6 LQ4 LQ9 4.8 5.3 5.7 6.0 6.2 Engines

Great gaskets! No more exhaust manifold leak.

Got these when I had to pull my heads, they fit perfectly, didn’t leak a bit when torqued to spec, were easy to install and super high quality! Got 30k miles on them already and they’re still holding strong. Best value for the money out there

These work great Michigan Motor Sports is great to do business with

Good product and good service.

These or the Delco ones are the ones to buy anything else and you’ll be doing the job again. Bought quite a few of these work with both oem manifolds and aftermarket headers. If you’re buying them probably be extracting broken bolts as well, welder and nuts about the best way anything else your wasting your time.

Great quality product.

Not quite OEM quality but did seal the surfaces. No leaks!

Packed well and fit perfectly. Also this is the correct style gasket for these engines. Not like the crap ones the auto parts stores keep on stock to sell and charge more for…