Stainless Works Chevy Trailblazer SS 2006-09 Headers - Manual

WWW.STAINLESSWORKS.NET 800-878-3635 FAX: 440-543-9183
2006-2009 TRAILBLAZER SS HEADER INSTALLATION
INSTRUCTIONS
Thanks for purchasing Stainless Works headers for your 2006-2009 Trailblazer SS. We have
gone to great pains to make sure that our headers fit and perform flawlessly. Please follow
these steps to ensure that your installation goes as planned. The factory manifold bolts can be
re-used and we recommend using new GM manifold gaskets and/ or Sensor Safe RTV Hi
Temperature gasket sealant.
DISASSEMBLY.
1. Under the hood, disconnect the battery, remove the air box and engine cover.
Remove spark plugs and wires, dipstick tube and washer fluid tank.
2. Raise the vehicle, level and support as required.
3. Loosen catback exhaust system and pull from rubber mounts. If replacing the catback
on the vehicle, completely remove it.
4. Disconnect all O2 sensors.
5. Remove crossmember located directly behind steering rack beneath where motor and
transmission meet (15 mm bolts).
6. Take out the front driveshaft by unbolting the four 7/16” bolts, then sliding driveshaft
out of transfer case. Make sure that cups stay on u-joint – use tape to keep them
attached.
7. Unbolt the leadpipes with cats from the manifolds (six 15 mm bolts).
8. Unbolt and remove the transmission crossmember (ten 15 mm bolts and four 18 mm
bolts) and remove leadpipes.
9. With transmission crossmember removed, you may need to perform the following:
Remove the actual transmission mount to shift motor left and then right to install the
headers. You will still be able to reinstall the crossmember as stated below for the