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is there supposed to be a gasket where the stock exhaust manifold bolts to the stock Y exhaust pipe. This the exhaust pipe before the big main cat. I don’t have the two small cats, one on each side I think it’s called a donut gasket
if i'm reading you right, there are no gaskets, or "donuts" between the stock exhaust manifolds and the front Y-pipe. in stock form, it utilizes a ball-flange type connection.