Z51 Joel just added a nice set of kooks 1 7/8 longtube headers to his LS3



and a nice 3 inch x-pipe from kooks also



Disconnect the Battery using a 10mm wrench then remove the dipstick and tube by removing the 15mm screw that holds the tube to the block



Raise the vehicle atleast 24inchs off the ground and support using jackstands


Remove the spark plug wires and the spark plug




Remove the front and rear O2 sensors but only remove the rear at this time


We then removed the complete exhaust with the exception of the catback because we were going to reuse it


with the old system on the ground you can remove the front two oxygen sensors
remove the automatic transmission cooling line hold down bracket located on the passenger side of the block just forward of the bell housing

connect the oxygen sensor to the kooks header and tighten


slide the header up from under the vehicle, attach the header and gasket with two of the 13mm bolts from the installation kit but do not tighten them....we decided to use the OEM gasket


Since the factory Oxygen Sensor is not long enough kooks supplies you with a longer sensor..at this time reconnect the front sensor using the new harness


Install the remaining header bolts but do not tighten

Install the kooks xpipe and midpipe using the clamps provided....after everything is aligned you can now tighten the full assembly connect the rear oxygen sensors using the remaining two harnesses

reinstall the dipstick and tube and connect the battery

and enjoy

ooooooo shiney! nice write up. i like the exauhst joel!

dam,hows it runin now?

the car is probably running rich...but once it gets tuned it should get faster then before

I need A tune. Iwill wait till the boost is on first

/sigh

i hate kooks for putting that O2 on that one primary.

other than that bad ass headers.

Very clean install Joel...

very nice bro... cant wait till shes done

damm!..joel she's going to get really nasty,bro...i cant wait to see it done

very nice install....about how long did it take to put them in?

If you don't count all the bullshit...with the 02 sensors....i'd say 3 hour and less

thats pretty easy then....

BOOST I NEED BOOST

lol, whats up with the aluminum foil around the Tb/maf?


preventing immigration from scanning illegal aliens?

the new and improved heat wrap,maybe ...naw,but thats what its really used for