Owners manual

CAUTION! Gloves or other protection should be worn to protect
installer from burns due to hot exhaust components during these final
steps!
IT IS CRITICAL that all bolts be re-tightened HOT after about 20
minutes of operation to prevent gasket failure.
NOTE: HEADERS ARE NOT MEANT TO SERVE AS “EXHAUST
SYSTEM SUPPORT HANGERS”. Additional hangers may need to be
added at the time of the installation of the headers so that THE EXHAUST
SYSTEM SUPPORTS ITSELF when the collector bolts are removed.
HEADERS THAT HAVE “SAGGED” DUE TO THE LACK OF SUFFICIENT
EXHAUST SYSTEM SUPPORT WILL NOT BE REPLACED UNDER
WARRANTY!
NOTE: Header bolts should be inspected for tightness from time to time to
ensure optimum gasket life. The bolts will STRETCH some at first due to
the exhaust heat, so they’ll loosen WITHOUT TURNING until they “take a
set”. (Bolts hard enough not to stretch would BREAK!)
What DOES work is this:
Go over the bolts again after the first DAY of driving (or about 100 miles-
whichever comes first), then after the first WEEK, after the first MONTH,
and then EVERY 6 MONTHS. Our exclusive gaskets are specially made so
that the cylinder head SHOULD begin to melt before the gaskets can burn
up. About the only way to kill these gaskets is to let the headers get loose
and then keep driving with a leak.
Due to varying conditions between geographical locations and usage, we
strongly recommend having the engine re-tune at a reputable tune-up shop
after the installation of the headers. Doing so will ensure that you get the
maximum benefit from the installation of the headers.
GIBSON PERFORMANCE strives to deliver the highest quality materials,
workmanship, and service. Please so not hesitate to call our technical line
if you have a question or experience a problem.