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Old 10-04-2015, 09:08 PM   #1
MR.Sarge's Avatar
Drives: 2015 2SS/RS 1LE
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Location: Windsor, ON
Posts: 409
Specific torque for LT header installation

So I am going to be installing Kooks 1 7/8 LT headers this week and reading through Kooks instructions for install, it is VERY general, without specifying specific torque for each bolt etc.

All it specifies is **All hardware should be tightened to factory specifications**

I looked through owners manual online especially in the technical data section, and I can't seem to find where it specifies the specific torque to tighten everything to.

Can someone clear up how much I need to tighten:
1) bolts of the headers themselves - FOUND (I think)

Exhaust Manifold Bolts - First Pass
15 N·m or 11 lb ft
Exhaust Manifold Bolts - Final Pass 20 N·m or 15 lb ft

2) o2 sensor plugs
3) clasps from midpipe to header
4) the clasp from the exhaust to the hi flow cat

Rather be prepared and have all info before install then get stuck halfway through and ask.

All help is appreciated.

Last edited by MR.Sarge; 10-04-2015 at 09:21 PM.
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Old 10-05-2015, 12:07 AM   #2
Drives: 2010 Camaro 2SS Victory Red 6M
Join Date: Apr 2015
Location: Gulf Coast, TX
Posts: 235
Yes that's the correct tq. Start in the middle and work your way outwards in a staggered pattern.
2010 2SS 6M Victory Red/Black
CAI intake, Speed Engineering 1 7/8" LT's, X4 base tune, Flowmaster Outlaw axle-back.

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Old 10-05-2015, 03:05 AM   #3

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3 an4 are 35ftlbs
2012 2SS/RS M6 SIM, Painted Carbon Flash rally stripes, Elite CC&CAOS 3.91 gears, dynoed by J&J Speedshop New Era ported TB, CAI intake, Apex Scoop, Heritage Grill, Pat G Cam Motion cam, 25%Fluidampr, Melling 296 Oil pump, Katech C5-R chain, Cloyes LS2 HD tensioner, PAC 1205x springs and pushrods, Comp Cams trunions. Improved Racing oil baffle, crank scraper, Monster Billet release bearing support, 18" remote bleeder, ARH 1 7/8" LT headers w/cats, TWM full Shifter, BMR sways, trailing arms, toe rods, delrin cradle bushings, BK039 rear control bushings, front bushings. Solo Mach-XL exhaust
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