BORLA PERFORMANCE INDUSTRIES
5901 Edison Dr.
Oxnard, Ca. 93033
2006 Cadillac STS-V
Exhaust System Installation
Thank you for purchasing a Borla Performance Cat-Back™ Exhaust System.
Precision manufactured using aircraft quality T-304 stainless steel; this system is designed to endure years of heavy use. Installing a Borla Performance Exhaust System on your vehicle will eliminate the restrictive design of the stock exhaust, allowing your
engine to discharge exhaust gas easier. The result is more horsepower and torque, longer engine life, and a distinctive throaty
growl- all this, with easy bolt-on installation. These installation instructions have been written to help you in the installation of
your Borla Performance Exhaust System. Please read it completely before installing your system.
This Borla Performance Cat-Back™ Exhaust System (Part number 140178) has been designed for 2006
Cadillac STS-V equipped with a Supercharged 4.6L V8 engine, rear-wheel and an automatic transmission.
Borla Performance Industries recommends that an exhaust shop or professional after market parts installer, who has all the necessary
equipment, tools and experienced personnel needed for proper installation, should perform the installation of this system. However,
if you decide to perform the installation, we recommend someone should help you. Ensure the installer uses all under car safety precautions including eye protection.
Please take time to read and understand the following…
By installing your Borla Performance Exhaust System, you indicate that you have read this document and you agree with the terms
stated below.
It is the responsibility of the purchaser to follow all installation instruction guidelines and safety procedures supplied with your
Borla Performance Exhaust System
Borla Performance Industries assumes no responsibility for damages occurring from misuse, abuse, improper installation, improper
operation, lack of responsible care, or all previously stated reasons resulting from incompatibility with other manufacturer’s products and/or systems.
Included with your Borla Performance Exhaust System is a warranty card. Please read it carefully before you begin any work on
your vehicle. If you should have any questions regarding our warranty policy, installation, or any other matter pertaining to your
new Borla Performance Exhaust System, please give us a call at the number provided on the warranty card.
TITLE: 2006 Cadillac STS-V Installation
Instructions
PART NO. A-35312
Rev.1 Page 1 of 5
BORLA PERFORMANCE INDUSTRIES
5901 Edison Dr.
Oxnard, Ca. 93033
Minimum Required Tool List:
TOOLS:
1.
2.
3.
4.
5.
6.
3/8” Drive Ratchet
3/8” Drive Extension 3”
13mm Socket
15mm Socket
7/8” Combination wrench
Pry Bar
SHOP SUPPLIES:
1. Spray Lubricant
Borla Performance Cat-back™ Bill of Materials
1.
2.
3.
4.
5.
6.
7.
8.
9.
L/H front pipe assembly
R/H front pipe assembly
X pipe assembly
Front muffler assembly
Left mid pipe
Right mid pipe
Left rear muffler assembly
Right rear muffler assembly
2.50” clamp (qty 8)
TITLE: 2006 Cadillac STS-V Installation
Instructions
PART NO. A-35312
Rev.1 Page 2 of 5
BORLA PERFORMANCE INDUSTRIES
5901 Edison Dr.
Oxnard, Ca. 93033
Caution!!! Never work on a hot exhaust system. Serious injury in the form of burns can result If the vehicle has been in use and
the exhaust system is hot, allow vehicle to cool for at least 1 hour. Always wear eye protection when working under any vehicle.
Note: It is our recommendation that you use a hoist or hydraulic lift to facilitate the installation of your new Borla Performance
Rear Section Exhaust System.
Taking all under car safety precautions, lift the vehicle using a hoist or hydraulic lift. Once this has been done, you may begin the
removal of your old exhaust system from your vehicle.
Note: Before removing the original exhaust system from your vehicle, please compare the parts you have received with the bill of
materials provided on the previous page to assure that you have all the parts necessary for the installation of your new Borla
Performance Rear Section Exhaust System.
Original Exhaust System Removal
Note: With a used vehicle, we suggest a penetrating spray lubricant to
be applied liberally to all exhaust fasteners and allowing a significant
period of time for the chemical to lubricate the threads before attempting to disassemble.
Figure 1
1. Using a 7/8” combination wrench, remove the Oxygen
sensors from each factory front pipe located behind the
catalytic converters as the one shown in figure 1.
2. Using a 13mm socket, unbolt and remove the center support shown in figure 2.
3. Unbolt the flanges shown in figure 3 located just behind
the catalytic converters. Place the hardware to the side
for use during the installation of your new exhaust system.
Figure 2
4. Lubricate all the hangers and rubber isolators.
5. Using a muffler stand or an additional person to hold the
exhaust up in position, remove the hangers from the rubber isolators and remove the system from the vehicle as
shown in figure 4.
Figure 3
TITLE: 2006 Cadillac STS-V Installation
Instructions
PART NO. A-35312
Rev.1 Page 3 of 5
BORLA PERFORMANCE INDUSTRIES
5901 Edison Dr.
Oxnard, Ca. 93033
Warning: Use extreme caution during installation. Torque all fasteners according to manufacturer’s torque values and tightening sequence. DO NOT
use air impact tools to tighten fasteners on Borla Performance Exhaust Systems. Use of such tools may result in bent flanges or gasket contact areas
leading to exhaust leaks.
Figure 4
Borla Performance Cat-Back
Exhaust System Installation
1. Using the original hardware, place the left and right
front pipes into position as shown in figure 5. Hand
tighten the hardware for now.
2. Install the Oxygen sensors previously removed into the
left and right front pipes.
Figure 5
3. Place a clamp over the expanded ends of the X pipe assembly and set it into position as shown in figure 6. Do
Not tighten the clamps.
4. Place a clamp over the expanded ends of the front muffler assembly and set it into position as shown in figure
7 . Do Not tighten the clamps. Using the original hardware, install the center support also shown in figure 7.
Figure 6
Figure 7
TITLE: 2006 Cadillac STS-V Installation
Instructions
PART NO. A-35312
Rev.1 Page 4 of 5
BORLA PERFORMANCE INDUSTRIES
5901 Edison Dr.
Oxnard, Ca. 93033
Borla Performance Cat-Back
Exhaust System Installation
(continued)
1. Place a clamp over the expanded end of left and right
mid pipes and set them into position as shown in figure
8. Do Not tighten the clamps.
2. Place a clamp over the expanded ends of the left and
right rear muffler assemblies and set them into position
as shown in figure 9 making sure to install the hangers
into the rubber isolators. Do Not tighten the clamps.
3. Check your exhaust system for proper clearance under
the vehicle and also for tip alignment.
Figure 8
4. Once position has been determined to be correct, tighten
the Accuseal clamps to 32-35 ft. lbs. Tighten the front
flange to 18-22 ft. lbs.
6. Before starting your vehicle, make sure to check all
wires, hoses, brake lines, body parts and tires for safe
clearance from the exhaust system.
7.
Start vehicle and check for any leaks. If any leaks are
found, determine cause (such as loose or incorrectly positioned clamp) and repair as necessary.
Figure 9
Note: When you first start your vehicle after the installation of your new
Borla Performance Exhaust System, there may be some smoke and fumes
coming from the system. This is a protective oil based coating used in the
manufacturing of mandrel bent performance exhaust tubing. This is not a
problem and will disappear within a very short period of time after the exhaust has reached normal operating temperatures.
TITLE: 2006 Cadillac STS-V Installation
Instructions
PART NO. A-35312
Rev.1 Page 5 of 5