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Well see what these puppies can do. Looking at our stock gaskets about 1/8th of each of the exhaust ports where covered up from the factory installation. Also looking at the exhaust manifold these should flow a ton better.
On Tuesday we will be constructing our new exhaust to hookup to these guys.......
Need more torque..........
Hows the clearance on those? They look like they take a lot more volume in the engine bay than the stock manifolds. I haven't check to see how much clearance under the hood, but looks like you might have to wrap some header insulation on those.
You should make several of those and have us beta test them gor you.
You know header wrap just encourages early rust formation. If you're going to lay down the $$$ on a beautiful header like this and want some thermal shielding have a professional ceramic coating applied.