JBA 40-2655 - Manual

INSTALLATION INSTRUCTIONS
** Installation recommendation: JBA recommends in most case that the vehicle be taken to a reputable exhaust shop for installation.
40-2653, 40-2654, 40-2655
‘65-‘70 Mustang V8 with JBA H-pipe
Parts List:
A.
P/S intermediate pipe 1
B. D/S intermediate pipe 1
C. JBA muffler 2
D. 90º bend 2
E. P/S tail pipe 1
F. D/S tail pipe 1
G. 2-1/2” Clamp 8
H. Universal Muffler hanger 2
I. Tailpipe hanger 2
J. Turnout 2
I
H
A
E
J
G C D
B F
H I
the outlet tube of the muffler. 9. On 2653 systems, follow
Typically the stock exhaust
Start:
Mark the floorboard at washer above instructions except
system on early cars is long position tailpipe tips through
gone. These instructions con­
onto the S/T screw, slip the
holes in rear valance. Align and
template the installation of a
screw through the hanger at
adjust for depth. Secure with
new JBA Exhaust System after
whichever hole you marked, slip
clamp to hanger.
the original exhaust system has
another fender washer on the
screw, and attach the hanger to
been removed. This system is 10. Very Important- Once the
designed to work with a JBA H­
the floor pan. Fasten the hanger
tailpipes are secured with the
Pipe built for your application.
to the muffler using a supplied
rear clamp, the tails of the
to match muffler heights
clamp. Do both sides; be sure
clamp bolts must be trimmed
off so they don’t hang up on the
JBA Exhaust System.
1. Remove and inventory the
leaf spring.
bolt through the rear frame
6. The rear tail pipe hangers
2. Disconnect the negative 11. Check the clearance of
battery cable and allow the
where the shipping tie-down
exhaust to floor and rear axle
exhaust system to completely
brackets bolt on. If your car has
along the complete system. Se­
cool.
these brackets, they must be
curely tighten all clamps. Tack
met onto the strap hanger. Slip
removed. Assemble the grom­
weld all slip joints
3. With the H-Pipe installed, a fender washer onto the 3 1/2”
and all exhaust removed from bolt. Slip the bolt through the
the car, slip the intermediate frame at the forward hole. Slip NOTES:
pipes onto the H-pipe. Orient 1.) All exhaust systems expand
them so the small single bend is
the hanger/grommet assy. onto
about 1” rearward whent exhaust
temperature rises. the bolt. Add another fender
flat, and pointing to the outside washer and a lock nut and
of the car. The int. pipe should tighten until grommet just starts
be just below the seat belt bolt. to compress.
If you have replaced your fac­
tory bolts, it may be necessary
7. Slip the tailpipes over the
to shorten an aftermarket bolt. axle. Install the small 90º
Allow at least a quarter inch bends, long side into the muf­
clearance on the bolt. fle . Drop the tail pipe onto the
90* bend. Align the tailpipe
4. Slip a muffler clamp on each so that it fits into the notch in
exhaust pipe. Slip the muff ers the floor pan, just inside of the
on to the Int. pipe. Align muf­ shock. Allow at least 1/2” clear­
flers to be flat with the floor, ance on the floo .
maintain alignment with forward
To get more power out of your Mustang, JBA offers easy to install bend of the intermediate pipe. 8. On 2654 systems, position
Long tube and Mid-length headers. For more information about these The muffler should have a min ­ the end of the tailpipe approxi­
and other quality performance products from JBA visit us online at
mum 1/2” clearance to the front mately 3/4” below the valance
www.jbaheaders.com
floor hump, and a minimum panel and approximately 1/2”
11/4” clearance on top. forward from the edge. (Adjust
front to rear position at back of
5. Support the muffler temp ­ muffle .) “Atta justed” to clear
rarily. Universal hangers are the 2 1/2” pipe and clamp. Usu­
supplied with the kit, or you ally a good smack with your
can adapt your factory dual hand against the tailpipe into
hangers. If using the universal the gas tank will gain the neces­
hangers, self-tapping screws sary clearance.
and fender washers are sup­
plied. Position the hanger on
JBA recommends taking the vehicle to a muff er shop and having all slip connections tack welded. 10.16.06