Installing KoolMat Headmaster Tunnel Heat shield

Purpose

Keep the exhaust heat away from the interior.

Tools Required

• Jack & Jack Stands
• 5/16" Socket
• 15mm Socket
• 1/2" Socket
• 7/8" Open End Wrench

Parts

Installation

Click On An Image To See It In Full Size

1. Removing intermediate pipe.
Please refer to the TPIS Headers/Random Technology Cats & X-Pipe installation section for steps on removing the factory intermediate pipe. Once removed, you should have a clear view of the driveline tunnel closeout panel.

2. Mark the bolts on the driveline tunnel closeout panel.
Place the Koolmat over the driveline tunnel closeout panel and stick a marker (ex. Black Sharpie�) through each of the grommets on the Koolmat to mark the corresponding bolts. Once done, put aside the Koolmat.

3. Remove marked bolts.
This part is a little tedious if you do not have air tools. Remove all the bolts that you marked using a 5/16" Socket. There should be a total of 12 bolts to remove.

4. Install Koolmat Heatshield.
Now that you got all those bolts out, you can start installing the Koolmat Heatshield. Loosely hand tighten all 12 bolts in place, then go back and tighten them using a 5/16" Socket. Torque to 89 lb in (10 Nm).

5. Reinstall intermediate pipe for the factory exhaust manifolds and intermediate pipe. (Those with TPIS Headers, Random Technology CATS/X-Pipe, skip to step 6.)

a) Install the rear section (muffler side) of the intermediate pipe to the muffler pipes by tightening the 4 15mm bolts to 37 lb ft (50 Nm). Note, two bolts per side.

b) Install the flange in front section (exhaust manifold & catalytic converter side) of the intermediate pipe to the exhaust manifolds flanges by tightening the 6 15mm bolts to 15 lb ft ( 20 Nm). Note there is a donut gasket on each side, don't forget the gasket! Also note there are three nuts per side.

c) Tighten the two exhaust pipe brace bolts in the front section of the intermediate pipe using a 15mm socket and torque to 37 lb ft (50 Nm).

d) Tighten the two exhaust pipe hanger lower bolts in the rear section of the intermediate pipe using a 1/2" socket and torque to 37 lb ft (50 Nm).

e) Apply some anti-sieze compound to the threads of the two oxygen sensors removed earlier and reinstall them on the intermediate pipe. Using a 7/8" Open End Wrench torque to 30 lb ft (42 Nm).

f) Replace the clips on the oxygen sensor harness if removed earlier. That's it, you are done.

6. Reinstall Random Techonology CATS & X-Pipe.
Please refer to the TPIS Headers/Random Technology Cats & X-Pipe installation section for steps on installing the Random Technology Cats and X-Pipe.