LG Motorsports LG C6 Pro Long Tube Headers - Manual (Page 2)

Move on to removing the spark plug wires and spark plugs from the engine. Be
careful not to drop any of the spark plugs as this will damage the plug and cause a misfire
condition. Once this is done, the next electrical part that needs to be completed is
removal of the factory 02 sensors. There are 4 sensors in the stock exhaust and all 4 will
be reused. Unclip the sensors from their wires and make note which sensors are used in
the front and which are used in the rear, they will install the in the same locations on the
LG Pro Long Tube header system.
At this point it is time to start removing the factory exhaust system. Start by un
bolting all of the clamps on the under side of the car and all of the factory hanger bolts.
Remove the exhaust manifold to H pipe bolts and remove the factory H pipe to the
mufflers. At this point you can move back up top and remove the bolts that hold the
manifolds onto the engine. The manifolds should drop out from the top down. Now you
have removed all components of the factory exhaust system and are ready to start the
install of the header system.
Install:
Start by installing the driver side header from the bottom side of the car. The
headers should slide into the engine compartment by pointing the collector towards the
inside of the car and down, and rotate into place. You can ‘hang’ them from the head
bolts until you can go back on the top side. I suggest installing only a front and rear bolt
with the gasket first then only starting the rest of the bolts before installing the rest of the
system.
Now install the header on the passenger side to start the rest of the install. The
header should install from the bottom up. We also only recommend using GM header
gaskets for the 2000 LS1 Camaro/Corvette as these use the same port design as the
headers and have proven the best seal.
Once under the car it is now time to start installing the rest of the pipes. The front
02 sensors should be installed into the headers and tightened down. You will need to
drill two ¼” holes at the front of the center plate to hold each 02 sensor wire with a zip tie
to keep them from burning on the headers as shown in Figure 1. Please note, it may be
necessary to unclip part of the factory harness to give enough slack and free play in the
wires.