PerTronix 40-3043 User Manual

INSTALLATION INSTRUCTIONS

** Installation recommendation: JBA recommends in most case that the vehicle be taken to a reputable exhaust shop for installation.

Part No. 40-3043

2007 Chevrolet Tahoe 4.8/5.3L
2007 GMC Yukon 4.8/5.3L

A B

F

D

Parts List: Qty

A. Intermediate pipe 1
B. JBA Mufer 1
C. Axle pipe 1
D. Tail pipe with tip 1
E. 3” U-bolt clamp 2
F. 3” Clamp w/ hanger 1

Start:

1. Remove and inventory new JBA
exhaust system.

2. Disconnect negative battery
cable and allow vehicle to cool.

3. Spray hangers with WD40 or
equivalent lubricant.

4. Cut the factory tail pipe behind
the rear mufer hanger.

Recommended Tools:
15mm deep socket
9/16” deep socket
WD40 or similar lubricant
Hack saw
Pliers
Pry bar

7. Remove the factory mufer
assembly.

8. Install the intermediate pipe (A)

E

12. Install the JBA mufer (B) on
the end of the intermediate pipe (A).

13. Position the 3” U-bolt clamp
over the slip connection with mufer
(B) and intermediate pipe (A).

14. Install the 3” U-bolt clamp with
hanger (F) at the rear of the JBA
mufer (B) and insert hangers into
the factory rubber isolators.

C

E

19. Align the new tip of the system
for proper clearance from fender
and suspension. Secure in place by
tightening clamps (E).

20. Using a soft cloth, remove all
prints from exhaust tip.

21. Check all clamps and con­nections for proper t and align­ment. Double check all clamps are
tightened and that all hangers are
secure in rubber grommets. It is
recommended that after installation
of the exhaust system you have all
slip connections tack welded by a
mufer shop.

NOTES:

1. All exhaust systems expand
about 1” rearward when exhaust
temperature rises.

2. It may be necessary to adjust the
location of the spare tire.

3. Use anti-seize on threads of
clamps.

5. Remove the rear factory exhaust
hangers from the rubber isolators
and remove the tail pipe.

9. Insert the intermediate pipe (A)
hanger into the forward rubber
isolator.

10. Temporarily snug the fasteners
connecting the intermediate pipe
(A) to the cat assembly.

15. Position the axle pipe (C)
over the rear axle and then slip it
together with the mufer (B).

16. Fit 3” U-bolt clamp (F) over the
end connection with mufer (B) and
axle-pipe (C).

17. Install the tail pipe with tip (D)
on to end of axle pipe (C). Insert
hanger into rubber isolator.

To get more power out of your
Tahoe or Yukon, JBA offers easy to
install 50 state smog legal perfor­mance headers and ignition wires.
For more information about these
and other quality performance
products from JBA visit us online at
www.jbaheaders.com

JBA Cat4ward® Headers

p/n 1850-2JS

18. Install the 3” U-bolt clamp over

6. Remove the front mufer hanger
from the rubber isolator. Unbolt the
mufer assembly from the catalytic
converter assembly.

11. Slip the supplied 3” U-bolt clamp
(E) over the end of the intermedi­ate pipe (A).

connection between tail pipe (D)
and axle pipe (C).

JBA Powercables™ Ignition Wires

p/n 0807

JBA recommends taking the vehicle to a mufer shop and having all slip connections tack welded. 6.31.06