1‑800‑243‑8355
Help
Contact Us
Free Shipping
Shipping Information
Manufacturer Rebates
How To Order
Payment Options
Return Policy
FAQs
Emissions Regulations
Gift Card Balance
Sponsorship Opportunities
Company
Request Catalog
OPGI Blog
Hours & Location
History
Frequent Buyer Points
Volume Discounts
Price Match Guarantee
Kit Swap Savings
Reviews
Careers
Clearance Sale
Archives
My Account
My Orders
My Wish List
As seen on
2009
STS
My Garage
1
View Garage
2009
Cadillac
STS
Shop Parts
Filter Search
Shop All Parts
+ Add Vehicle
Catalogs
Cart
Have a Question?
Ask our Experts
Mon‑Fri 8:00‑4:30 PT
Experts Offline
Interior
Emblems
Reproduction, Aftermarket, Kits, Hardware
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Gauges & Accessories
Gauges, Panels, Kits, Sending Units
Interior Accessories
Armrests, Carpet, Flooring, Consoles, Dash, Door, Glove Box
Exterior
Decals
Decals, Body Stripes, Misc
Emblems
Reproduction, Aftermarket, Kits, Hardware
Exhaust
Mufflers, Headers, Pipes, Mainfolds, Tips, Kits
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Gaskets & Seals
Adhesives, Gaskets, Seals, Weatherstripping
Lamps & Lenses
Headlights, Lamps, Lenses, Bulbs, Hardware
Wheels & Accessories
Lug Nuts, Bolts, Studs, Wheels, Accessories
Body Parts & Trim
Bumpers & Hardware
Bumpers, Hardware, Inserts, Brackets
Moldings
Front End, Rear, Side, Window, Hardware
Sheet Metal & Body Panels
Doors, Hoods, Fenders, Quarter, Trunk, Floor, Armrest
Trunk Panels & Accessories
Mats, Dividers, Hardware, Accessories
Window
Glass, Motors, Regulators, Hardware
Suspension & Brakes
Brake Systems
Disc, Drum, Master Cylinders, Boosters, Pumps, Valves
Chassis & Suspension
Bushings, Mounts, Chassis, Steering, Suspension
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Engine & Drivetrain
Air & Fuel Delivery
Air Cleaners, Filters, Carburetors, Pumps, Tanks, Manifolds
Cooling & Heating
Air Conditioning, Controls, Fans, Motors, Cores, Radiators, Thermostats, Heaters, Pumps, Ducts
Decals
Decals, Body Stripes, Misc
Drivetrain
Differentials, Driveshafts, Chaines, Shifters, Transmissions, Bearings, Seals
Emblems
Reproduction, Aftermarket, Kits, Hardware
Engines & Components
Belts, Pulleys, Camshafts, Heads, Oiling Systems, Engines
Exhaust
Mufflers, Headers, Pipes, Mainfolds, Tips, Kits
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Fittings & Hoses
Fittings, Clamps, Brackets, Hoses, Lines, Plugs, Tubing, Valves
Gaskets & Seals
Adhesives, Gaskets, Seals, Weatherstripping
Ignition & Electrical
Alternators, Wiring, Horns, Starters, Distributors
Oils, Fluids & Sealer
Oils, Fluids, Grease, Lubricants, Grease, Cleaners, Sealers, Glues
Windshield Washer
Bottles, Pumps, Arms, Motors, Switches, Hardware
Audio & Electric
Gauges & Accessories
Gauges, Panels, Kits, Sending Units
Ignition & Electrical
Alternators, Wiring, Horns, Starters, Distributors
Mobile Electronics
Antennas, Radios, Speakers, GPS, iPod, Bluetooth
Tools & More
Books
Owners Manuals, Service Manuals, History
Car Care & Paint
Covers, Cleaners, Waxes, Polishes, Paints, Coatings, Dyes, Markers
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Gifts & Apparel
Shirts, Jackets, Hats, Plates, Garage Decor
Tools & Shop Equipment
Brake, Electrical, Engine, Fuel, Hand, Suspension, Wheel, Tire
×
We use cookies to ensure that we give you the best experience on our website. Click
here
for more information.
Got It
Labor Day Bonus Discounts!
Free Shipping over $149 + up to 15% off - use code: LABORDAY
Home
STS
2009
Exhaust
2009 Cadillac STS
Exhaust
Categories
Clamps, Hangers & Brackets
Exhaust Pipes, Flanges & Turndowns
Exhaust Tips
Header Accessories
Mufflers & Resonators
2009 Cadillac STS
Exhaust
Filters
12
24
36
48
60
96
120
Relevance
Best Selling
A-Z ↓
Z-A ↑
Highest Price ↑
Lowest Price ↓
Newest Arrivals
×
Product Type
Aftermarket
24
Performance
85
Part Type
Engine Compartment Insulation
1
Exhaust Clamp
4
Exhaust Cutout
1
Exhaust Filler Plate
2
Exhaust Muffler
75
Exhaust Muffler Set
1
Exhaust Outlet Plug
2
Exhaust Pipe
5
Exhaust System Kit
1
Exhaust System Wrap
1
Exhaust Tail Pipe
9
Exhaust Tail Pipe Tip
2
Heat Shield Insulator
5
Thermal Acoustic Insulation
1
Category
Clamps, Hangers & Brackets
4
Exhaust Pipes, Flanges & Turndowns
8
Exhaust Tips
13
Header Accessories
11
Mufflers & Resonators
76
Price
$1 - $100
35
$101 - $200
42
$201 - $300
21
$301 - $400
3
$401 - up
8
New Arrival
New
5
Brand
Black Widow Exhaust
13
Corsa Exhaust
9
Doug's Headers
2
Flowmaster
1
Magnaflow
64
Performance by OPGI
1
Pypes
9
RESTOPARTS
1
Thermo-Tec
7
Review Rating
ooooo
ooooo
5
Not Yet Reviewed
104
Pypes
Muffler, Pypes, Turbo Pro, 2-1/2" Inlet/Outlet, 14" Stainless Steel Body
2 Type Options
ooooo
ooooo
$108.99
Black Widow Exhaust
Bezel, Exhaust Outlet, Black Widow, 3-½"x8-½", 3-1/2" Diameter, "black widow"
Left Facing Side / Right Facing Side
ooooo
ooooo
$49.99
NEW
Pypes
Muffler, Pypes, M-80 Race Pro, Round 2-1/2" Offset In/Out, 14" Long
ooooo
ooooo
$71.99
Black Widow Exhaust
Black Widow Muffler Angry Housewife
10 Configuration Options
ooooo
ooooo
From
$109.99
NEW
Pypes
Muffler, Pypes, M-80 Race Pro, Round 2-1/2" I/O, 6" Long
ooooo
ooooo
$123.99
Magnaflow
Muffler, Rumble Stainless Chambered, Center/Center, 4.25" x 9.5" x 6.5" Body/13"
2 Size Options
ooooo
ooooo
$98.99
NEW
Pypes
Muffler, Pypes, Race Pro, Oval 3" I/O, Offset/Center, 14" Long
ooooo
ooooo
$127.99
Magnaflow
Muffler, 3.5" Round Glasspack, Magnaflow, Aluminized
9 Length/Size Options
ooooo
ooooo
From
$52.99
NEW
Insulating Wrap, Exhaust, 2" Wide x 50" Long
2 Finish Options
ooooo
ooooo
$12.99
Magnaflow
Muffler, Rumble Chambered Performance, 4.25" x 9.5" x 6.5" Body, 13" Length
3 Inlet/Outlet/Size Options
ooooo
ooooo
$64.99
Magnaflow
Muffler, 4" Round Redpack Glasspack, Magnaflow, 3" Inlet/Outlet, 18" Body
ooooo
ooooo
$78.99
Magnaflow
Muffler, Rumble Turbo Perf, 2.25" Offset/Cntr, 4.25"x9.75" x 20" Body/25" Long
ooooo
ooooo
$62.99
Magnaflow
Muffler, Rumble Turbo Perf, 2" Offset/Cntr, 4.25" x 7.75" x 14" Body/18.5" Long
ooooo
ooooo
$57.99
Thermo-Tec
Heat Barrier, Thermo-Tec, Aluminized, 40"x 50'
ooooo
ooooo
$1,741.99
Magnaflow
Muffler, 5" x 8" x 22" Oval Reversible, MF, Satin 409 Stainless Steel
14 Style Options
ooooo
ooooo
From
$195.99
Magnaflow
Muffler, 4" Round Reversible, 2.5" Core, Magnaflow, Satin 409SS, Center/Center
10 Length/Size Options
ooooo
ooooo
From
$112.99
Magnaflow
Muffler, 5" x 8" Oval Reversible, Magnaflow, Satin 409SS, Offset/Center
10 Length/Size Options
ooooo
ooooo
From
$125.99
Pypes
Muffler, Pypes, Turbo Pro, 3" Offset Inlet/Outlet, 14" Stainless Steel Body
ooooo
ooooo
$109.99
Magnaflow
Muffler, 6" Round Reversible, Magnaflow, Brushed 430SS, Center/Center
7 Style Options
ooooo
ooooo
From
$159.99
Black Widow Exhaust
Bezel, Exhaust Outlet, Black Widow Exhaust, 4-1/2"x8-1/2", 3-1/2" Diameter
ooooo
ooooo
$46.99
Magnaflow
Muffler, 3" Round Redpack Glasspack, Magnaflow, 1.75" Inlet/Outlet, 12" Body
ooooo
ooooo
$51.99
Thermo-Tec
Heat Barrier, Thermo-Tec, Aluminized, 18"x 20"
ooooo
ooooo
$28.99
Black Widow Exhaust
Exhaust Pipe, X-Pipe, Black Widow, 3" Diameter
ooooo
ooooo
$84.99
Thermo-Tec
Heat and Sound Suppressor, Thermo-Tec, 12" x 33 1/2 Feet, 0.007" Thick, 1-Piece
ooooo
ooooo
$332.99
Page 2 of 5 - 110 Items
«
1
2
3
4
»
Page 2 of 5 - 110 Items
«
1
2
3
4
»
Free Ground Shipping
Free Ground Shipping on orders over $149 in the contiguous United States.
Shop Clearance
Save up to 55% on huge clearance deals on hundreds of items.
Earn Points for Free Parts
Earn points for every dollar you spend with OPGI’s Frequent Buyer Rewards Program.
Price Match Guarantee
We’ll price match any currently advertised retail price offered by a retail competitor.
Select Your Vehicle
Find parts that fit your vehicle
GM Cars
GM Trucks
Make
Model
Year
Go