Stainless Works Chevy Tahoe/Yukon 2007-14 Headers - Manual (Page 2)

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HEADER INSTALLATION
1. DO NOT reuse factory manifold gaskets, instead use red hi temperature RTV
silicon sealant.
2. Install left (drivers) header from the top by pulling the large engine harness
toward the front of the vehicle and slowly lower header into position. Install and
tighten bolts and reinstall plugs and wires.
3. Install right (passenger) header from underneath vehicle. It may be necessary to
push transmission lines toward engine to get header flange into position. Install
and tighten bolts, reinstall plugs, wires, drive shaft and sway bar. Remove front
O2’s from “Y” pipe and install in headers.
4. Place a 2-½” clamp on both right and left collectors and install both catalytic
converters. The cat with the bend welded to it goes on the left (drivers) header.
Install straight pipe with O2 bung on right (passenger) header, rotate the left
converter so the bend faces downward and slip left rear lead pipe (cross over) on
along with 2-½” clamp, rotate back into position (end of left rear lead pipe approx
½ inch above cross member) and snug clamps on both lead pipes.
5. Slide a 2-1/2” clamp on the ends of both right and left lead pipes. If a “Y” was
supplied with your headers, install it at this time and snug clamps. Use the
stainless 2-1/2” bolts and nuts to connect to our 3-½ cat back or your factory
exhaust.
6. If headers were purchased with our Stainless Works True Dual Exhaust System,
install left rear extension lead pipe to left rear lead, slip clamp into position, level
rear of pipe with right lead pipe and nut clamp. Install rear O2’s at this time and
reconnect to factory harness
7. Be sure to have adequate clearance around all wires, hoses and lines. If anything
is in contact with the exhaust system, it will melt. Make sure to have at least
½” of clearance and wrap any suspect areas with DEI thermal barrier wrap.
8. After double checking for clearance and making sure all lines, wires and hoses are
secured, drive the car for 10-20 miles and re-check all clamps and clearances.