Paxton Superchargers Plymouth Prowler - Manual (Page 7)

1-1 P/N: 4809629
©2003 Paxton Automotive
All Rights Reserved, Intl. Copr. Secured
22OCT02 v2.0 PlymProwler(4809629v2.0)
Section 1
HEADER INSTALLATION
1.1 PROWLER HEADER INSTALLATION
INSTRUCTIONS
A. Raise vehicle approximately 2 feet off the
ground, preferably using a lift. The only way
to install the headers is to work from the
bottom, so use either ramps or heavy-duty
jack stands to get the vehicle to a workable
height. You will need basic metric and
American tools for disassembly.
B. Remove the stock manifolds and catalytic
converters. Clean out any carbon buildup
from the heads. Install the studs provided in
the kit using a torx socket to tighten. After
the studs are tightened, place the gaskets
over the studs and install the headers.
*****NOTE*****
You may need to enlarge the holes in the head-
ers with a file to ease assembly. Use the lock
washers provided in the kit and tighten equally.
After the headers are tightened, refer to
attached diagram to see where to cut the
stock head pipe away from the cats. Once
the stock head pipes are removed, insert the
cats back into the factory slip fits.
C. Fasten the 3-bolt flanges and gaskets finger
tight to the headers. Position the cats to
index into the blank flanges bolted to the
new headers.
*****Note*****
The tube size on the stock cat is 2-1⁄4" and the
header collector is 2-1/2" We recommend taking
the cats to a muffler shop and having them
expanded to better fit the flange. Once this is
done, position both cats in their factory slip fits
and index into the new headers. Using a mig
welder tack the cat to the flanges in at least
three places. Remove the cats and finish weld.
Re-install the cats using the lock washers
included in the kit. Tighten the 3 bolt flange
joints first then the factory slip fits last.
*****IMPORTANT*****
Once the headers and cats are finish welded and
installed, pay close attention to any hoses, wires
etc., that may be touching the headers. Move
any of these objects out of the way. If you wish
to use any conforming heat shields, wrap the
part but NOT THE HEADERS. The headers need
to "breathe". Wrapping it with a shield will dam-
age it in time.
D. When everything is done and inspected start
the vehicle and check for leaks. If every-
thing looks good, let it idle for appoximately
15 minutes. Shut it off and re-tighten the
header bolts. New bolts and or studs will
stretch once when hot. You will notice a nor-
mal rate of approximately 1/2 turn to tight-
en. Once this is completed you are ready to
go.