JBA 40-3045 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. 40-3045

2007 Chevrolet Suburban 5.3L 2007 GMC Yukon XL 5.3L

Parts List: Qty Recommended Tools:

A. Intermediate pipe 1 15mm deep socket B. JBA Mufer 1 9/16” deep socket C. Axle pipe 1 WD40 or similar lubricant D. Tail pipe with tip 1 Hack saw

E. 3” U-bolt clamp 2 Pliers F. 3” Clamp w/ hanger 1 Pry bar

A B

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.

7. Remove the factory mufer

assembly.

8. Install the intermediate pipe (A)

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.

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 align-

ment. 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.

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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).

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p/n 0807

JBA recommends taking the vehicle to a mufer shop and having all slip connections tack welded. 11.29.06