Installation Manual

2010-2013 Chevy Camaro V8
Full Length Headers
Part # 4021,40210,40215
4031,40310,40315
2
INS-149
STEP 10
STEP 15
From underneath the vehicle, position the
headers onto the heads and install a bolt or two
to hold them in place.
STEP 12
STEP 11
Transfer all 4 oxygen sensors from the stock
exhaust manifolds and mid-pipes to the BBK
Headers and cat/off-road sections. NOTE!!! Be
sure to add a small amount of anti-seize to
the top thread of each oxygen sensor using
the supplied anti-seize packet. As you thread
the oxygen sensor back into the part the
anti-seize will spread evenly throughout the
threads.
From above, position the gaskets in place and
install all the supplied header bolts and tighten.
First torque them to 11ft lbs then to 18ft lbs.
Install the supplied studs into the header
collector flanges.
STEP 14
Reconnect all 4 oxygen sensor plugs.
STEP 13
Install the supplied cat sections or off-road pipe
sections to the collectors using the supplied
hardware. Slide the stock exhaust clamps over
the pipes to connect to the rear. Position the
oxygen sensor bungs at a slight upward angle.
Tighten the clamps and collector nuts.
STEP 16
Re-install spark plugs, wires, oil dipstick and
tube. Re-install the air box and inlet tube.
Reconnect the breather hose and Mass Air
Sensor Plug.
STEP 17
Remove the oil cap and re-install the engine
cover and replace the oil cap. Reconnect the
battery and start the engine to check for any
leaks. Re-torque the header bolts after about
100 miles of driving.