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
1978
Fleetwood
My Garage
2
View Garage
1978
Cadillac
Fleetwood
Shop Parts
Filter Search
1982
Buick
Grand National
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
Door Handles & Hardware
Door & Window Handles, Door Hinges
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
Keys & Locks
Hardware, Keys, Locks, Sets, & Switches
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
Keys & Locks
Hardware, Keys, Locks, Sets, & Switches
Lamps & Lenses
Headlights, Lamps, Lenses, Bulbs, Hardware
Wheels & Accessories
Lug Nuts, Bolts, Studs, Wheels, Accessories
Body Parts & Trim
Convertible Tops & Accessories
Tops, Moldings, Boots, Hardware
Door Handles & Hardware
Door & Window Handles, Door Hinges
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
Vinyl Tops
Tops, Modlings, Clips
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
250th Anniversary Sale
Save up to 20% on Restoration - use code: USA250
Home
Fleetwood
1978
Exhaust
Mufflers & Resonators
1978 Cadillac Fleetwood
Mufflers & Resonators
Filters
12
24
36
48
60
96
120
Relevance
Best Selling
A-Z ↓
Z-A ↑
Highest Price ↑
Lowest Price ↓
Newest Arrivals
×
Product Type
Aftermarket
15
Performance
89
Part Type
Exhaust Heat Shield
1
Exhaust Muffler
101
Exhaust Muffler Set
1
Thermal Acoustic Insulation
1
Category
Mufflers & Resonators
104
Price
$1 - $100
23
$101 - $200
59
$201 - $300
18
$301 - $400
2
$401 - up
2
New Arrival
New
4
Brand
Black Widow Exhaust
5
Flowmaster
11
Hooker
1
Magnaflow
64
Patriot Exhaust
9
Pypes
12
Thermo-Tec
2
Review Rating
ooooo
ooooo
3
ooooo
ooooo
1
ooooo
ooooo
1
Not Yet Reviewed
99
Magnaflow
Muffler, 5"x 8" x 14" Oval Reversible, Brshd SS, 3" Center In/2.5" Dual Out, 14"
ooooo
ooooo
$208.99
Magnaflow
Muffler, 4" Round Reversible, MF Race, Brushed 430SS, Center/Center, 6"
ooooo
ooooo
$209.99
Magnaflow
Muffler w/Tip, Comp 5" x 8" x 14" Oval, 3" In/4" Angle Cut Tip, Center/Centr, MF
ooooo
ooooo
$229.99
Magnaflow
Muffler w/Tip, Street 5" x 8" x 14" Oval, 2.25" In/Dual 3.5" Rolled Strght Cut
ooooo
ooooo
$358.99
Magnaflow
Muffler w/Tip, Street 5" x 8" x 14" Oval, 2.25" In/4" Angle Cut Tip, Cntr/Cntr
ooooo
ooooo
$239.99
Magnaflow
Muffler w/Tip, Street 6" x 20.5" Round, 2.25" Inlet/4" Straight Cut Tip, MF
ooooo
ooooo
$212.99
Magnaflow
Muffler w/Tip, Street 6" x 18.25" Round, 2.25" Inlet/4" Straight Cut Tip, MF
ooooo
ooooo
$215.99
Magnaflow
Muffler w/Tip, Street 5" x 8" x 14" Oval, 2.25" In/4" Rolled Angl Cut, Cntr/Cntr
ooooo
ooooo
$269.99
Page 5 of 5 - 104 Items
«
3
4
5
Page 5 of 5 - 104 Items
«
3
4
5
Free Ground Shipping
Free Ground Shipping on orders over $299 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