Weiand John Lingenfelter Signature series aluminum ubtake manifold picks up where GM's factory composite leaves off.  Featuring thicker walls and extra material in that critical areas that allow for flow modifications and a removable panelfor access to the runners.   Includes necessary instructions, hardware and gaskets for installation.

Polished Intake Shown - Satin Finish is standard

Add 12 HP to your LS1 engine.
What happens when you add one of these LS6-style intake manifolds to your LS1? You get some serious horsepower gains--up to 12 HP over stock. And Weiand left plenty of room to make more power, too. These lightweight aluminum intakes have a surprisingly beefy design, which gives you plenty of room for porting. Plus, the manifolds can handle the high-intake pressures of nitrous or blower systems. Other features include an idle-to-6,200 rpm powerband, a removable underside panel for access to the runners, and your choice of satin or polished finishes.

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