2
4) Retain all paperwork pertaining to the purchase of your Thorley product. Save your receipt!
Your limited warranty is not valid without a receipt of purchase.
The installation of headers onto any vehicle must be performed in accordance with all govern-
mental regulations that might pertain to the particular vehicle receiving the headers. Please
call your Doug Thorley Headers distributor if there are any questions regarding the legality of
the installation.
The Executive Order (“E.O.”) number for this part number is “PENDING”.
WARRANTY NOTES
1) It is important that you read the entire instruction sheet before initiating any installation.
2) Thorley headers are designed to fit only factory installed engine and transmission combi-
nations. We cannot guarantee that Thorley headers will fit in the case of “engine swaps” or
“transmission swaps”.
3) Due to restricted room in the engine compartment, your headers may come close to cer-
tain body and chassis components. This is normal for an installation of this type. However,
a careful inspection must be completed to insure that the distances and placement are
reasonable and logical, especially with regard to electrical, fuel, and brake components.
4) Because of the requirement to raise the engine to facilitate header installation, the engine
mounts should be carefully inspected at that point of the installation. It is highly recom-
mended that questionable or deteriorated engine mounts be replaced during the
installation of the headers. In some cases, the engine mounts need to be loosened and
repositioned to provide optimum header clearance from some components.
5) Because of car-to-car variations,
Thorley Headers strongly recommends that these
headers be installed by a competent exhaust shop that has welding and fabrication
capabilities.
INSTALLATION NOTES
LEGALITY NOTE
THY-470
NISSAN/ SUZUKI 4.0L
FRONTIER, PATHFINDER, XTERRA/
EQUATOR, 2005-12, 2/4WD
