GM F-Body LS1 Exhaust Flanges, Mild Steel
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Q & A
What's in the Box
You just bought your LS1 and plan on using the factory exhaust manifolds, but noticed they have odd shaped collector flanges. Now what? These flanges bolt to the factory factory manifold and allow for a smooth installation. Flanges are 3/8" thick.
Specify driver or passenger side.
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