Big Power Gains For Your LS1

Special plastic clips, available through auto parts stores or fuel-injection specialists, are required to pop the fuel line off the fuel rail.

Now the bolts that hold the manifolds to the head can be removed and the manifold lifted out of the engine compartment.

There isn't much in the way on the passenger side, so once the coil assembly is removed, the manifold can be unbolted...

...and extracted from the engine compartment.

Next the headers can be worked into place. It may look like a difficult task since the collectors twist around, but TPI Specialties did an excellent job of designing the headers and they are surprisingly easy to work into position.

After the driver-side header is in position, start two bolts to hold it in place, but don't tighten them.