
Corporate Ofce: PerTronix Inc. 440 E. Arrow Highway, San Dimas, California 91773 * Phone 909.599.5955 • FAX 909.599.6424
Installation Instructions
and Warranty Information
1930S 2005-2009 Jeep Liberty 3.7
1930S-2 2007-2008 Dodge Nitro 3.7
CARB EO # D-57-28
Read all instructions carefully before attempting installation.
Rev.12-28-13 DSL

PerTronix© thanks you for choosing JBA HEADERS, the best fitting, highest quality
header on the market. In order to realize the full potential of our good fit, please read and
understand these instructions completely prior to starting work.
Check to make sure you received the proper parts for your application. The header number
will be stamped on the engine flange. If you are unsure you have received the proper parts
call before you start work.
Be sure to work safe! Whenever you work under the vehicle be sure that it is located on
level, solid ground and is supported by adequate safety stands! Remember: Hot asphalt will
not support most jack stands!
Many factors affect the installation of headers, some of which are broken or aftermarket
motor mounts, accidents that impact the configuration of the frame, and/or the installation
of different engines or aftermarket cylinder heads.
Attention Customers breaking in new engines: Due to the extreme heat generated during
the break-in process, the appearance of the ceramic coating may be altered in certain areas.
The protection characteristics and thermal barrier properties of the coating is never compromised. It is recommended that a cast iron manifold or old set of headers be used for this
process.
Notice: The coating of these headers can be marred or scratched during installation. If the
header needs to be returned and is damaged, you will be charged for recoat.

JBA uses sealing beads on all its headers. We have found that when installed correctly, the raised bead around
each port increases the pressure exerted on the gasket directly adjacent to the port and effectively prevents leaking gaskets. It is normal for the flange to be raised off the cylinder head the thickness of the sealing bead. It is
important when installing the header, to install all bolts loosely, then tighten evenly to ensure the flat installation
of the flange. The torque sequence from one flange to another will vary, but generally every bolt on a header
should be first fit snug, starting from the inside of the flange working out, alternating from top to bottom so
that the bolt connects the flange to the manifold to the point where they barely touch. Second, using the same
inside-out pattern, tighten each bolt until finished. This method will help prevent leakage and will give the user
the best possible performance out of their pair of headers.
1. Disconnect the battery cables.
2. Unbolt exhaust pipes from exhaust manifolds.
3. Unbolt heat shields from manifolds. Remove.
4. Unbolt exhaust manifolds. Remove.
5. Clean gasket material from head. Be careful not to gouge head surface.
6. Install headers using gaskets, and hardware provided.
7. Connect exhaust using supplied hardware.
8. Reconnect battery cables.
9. Start engine, check for leaks.

Parts List:
(1) Driver’s Side Header Assembly (2) 3/8” x 2”
(1) Passenger’s Side Header Assembly (2) 3/8” Nut
(2) Head Flange Gaskets (2) 3/8” Flat Washer
(2) 3/8” x 2-1/4” Bolt (2) 3/8” Serrated Flange Nut
LIMITED ONE YEAR WARRANTY
All JBA HEADERS and exhaust products are guaranteed, to the original purchaser, to be free of defects in materials and workmanship for one year. This warranty
covers the replacement or repair of the product only and does not cover the cost
of removal and installation, customer applied aftermarket coatings or any discolor-
ation or corrosion of nished surfaces.
Damage or product failure resulting from collision, improper installation, off-road
use, road hazards, the use of exhaust insulating wrap or like products or rust occurring after installation, is not covered by the warranty. The warranty extends only
to the original purchaser.
Should a part become defective it should be returned to the original selling retailer
and must be accompanied with the sales receipt. If there is no retailer in your area,
call the factory for a return authorization and return your part prepaid to the factory
for inspection. PerTronix reserves the rights to replace or repair the alleged defective part and return the part freight collect.