383 Exhaust

There are factory manifolds for that application,,hard to find,,very expensive and very restrictive on one side. TTI's are a grand, sit very low and are tough to install. Schumakers are made by tti, instal in minutes but flow less than a tti. If you are after more than about 530hp than the TTIs are you only choice IMO, less than that then the convenience of the schumakers is great. Here are the schumakers on a 69 383 at close to 500hp that is going in a duster

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