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
1970
Grand Prix
My Garage
4
View Garage
1970
Pontiac
Grand Prix
Shop Parts
Filter Search
1968
GMC
C25/C2500
Shop Parts
Filter Search
2006
Cadillac
XLR
Shop Parts
Filter Search
1960
Chevrolet
C10
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
Mirrors & Hardware
Mirrors, Mounting Hardware
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
Mirrors & Hardware
Mirrors, Mounting Hardware
Wheels & Accessories
Lug Nuts, Bolts, Studs, Wheels, Accessories
Body Parts & Trim
Bumpers & Hardware
Bumpers, Hardware, Inserts, Brackets
Convertible Tops & Accessories
Tops, Moldings, Boots, Hardware
Door Handles & Hardware
Door & Window Handles, Door Hinges
Mirrors & Hardware
Mirrors, Mounting Hardware
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
250th Anniversary Sale
Save up to 20% on Restoration - use code: USA250
Home
Grand Prix
1970
Exhaust
1970 Pontiac Grand Prix
Exhaust
Categories
Clamps, Hangers & Brackets
Exhaust Pipes, Flanges & Turndowns
Exhaust Systems & Kits
Exhaust Tips
Header Accessories
Manifolds
Mufflers & Resonators
Smog Components
1970 Pontiac Grand Prix
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
74
Performance
138
Restoration
11
Part Type
Air Pump Check Valve
1
Bolt Retainer
1
Exhaust Clamp
5
Exhaust Cutout
1
Exhaust Filler Plate
2
Exhaust Flange
1
Exhaust Header Collector
1
Exhaust Header Collector Gasket
1
Exhaust Header Pipe
2
Exhaust Header Reducer
2
Exhaust Heat Shield
1
Exhaust Heat Shield Clip Nut
1
Exhaust Manifold
2
Exhaust Manifold Down Pipe
2
Exhaust Manifold Heat Shield
2
Exhaust Muffler
102
Exhaust Muffler Bracket
1
Exhaust Muffler Clamp
4
Exhaust Muffler Set
1
Exhaust Outlet Plug
3
Exhaust Pipe
8
Exhaust System Kit
25
Exhaust System Wrap
11
Exhaust Tail Pipe
15
Exhaust Tail Pipe Bracket
3
Exhaust Tail Pipe Tip
3
Heat Shield Insulator
5
Spray Paint
1
Thermal Acoustic Insulation
17
Uncategorized
1
Category
Clamps, Hangers & Brackets
15
Exhaust Pipes, Flanges & Turndowns
26
Exhaust Systems & Kits
28
Exhaust Tips
19
Header Accessories
32
Manifolds
4
Mufflers & Resonators
105
Smog Components
1
Price
$1 - $100
81
$101 - $200
78
$201 - $300
25
$301 - $400
5
$401 - up
34
New Arrival
New
4
Brand
Black Widow Exhaust
14
Corsa Exhaust
9
CPP
3
Doug's Headers
2
Flowmaster
24
Hooker
3
Magnaflow
65
Mr. Gasket
1
Patriot Exhaust
17
Performance by OPGI
1
Pypes
35
RESTOPARTS
1
Thermo-Tec
35
Review Rating
ooooo
ooooo
16
ooooo
ooooo
12
ooooo
ooooo
1
Not Yet Reviewed
194
Thermo-Tec
Heat and Sound Suppressor, Thermo-Tec, 12" x 33 1/2 Feet, 0.007" Thick, 1-Piece
ooooo
ooooo
$332.99
Magnaflow
Muffler, 5" x 8" Oval Reversible, Magnaflow, Satin 409SS, Center/Center
9 Length/Size Options
ooooo
ooooo
From
$134.99
Magnaflow
Muffler, 5" x 8" Oval Reversible, MF, Brushed 430SS, Offset/Offset
6 Length/Size Options
ooooo
ooooo
From
$181.99
Pypes
Muffler, Pypes, Turbo Pro, 3" Offset Inlet/Outlet, 14" Stainless Steel Body
ooooo
ooooo
$109.99
Thermo-Tec
Heat Barrier, Thermo-Tec, Adhesive Backed, 12" x 50 Feet
ooooo
ooooo
$619.99
Magnaflow
Muffler, 4" x 9" x 18" XL Oval Multi-Chamber, MF, Satin 409 Stainless Steel
7 Inlet/Outlet/Size Options
ooooo
ooooo
From
$159.99
Magnaflow
Muffler, 5" x 8" x 14" Oval Reversible, MF, Brushed 430SS, Offset/Center
1 Size Options
ooooo
ooooo
$191.99
Magnaflow
Muffler, Rumble Chambered Perf, 2.5" Offset/Dual; 4.25" x 9.5" x 17" Body, 23"
ooooo
ooooo
$72.99
Magnaflow
Muffler w/Tip, Street 5" x 8" x 14" Oval, 2.25" In/3" Dual Rolled Ang Cut Tips
ooooo
ooooo
$416.99
Magnaflow
Muffler, Rumble Stainless Chambered, Center/Center, 4.25" x 9.5" x 6.5" Body/13"
2 Size Options
ooooo
ooooo
$98.99
Thermo-Tec
Heat and Sound Suppressor, Thermo-Tec, 36" x 33 1/2 Feet, 0.007" Thick, 1-Piece
ooooo
ooooo
$517.99
Black Widow Exhaust
Exhaust Pipe, Y-Pipe, Black Widow Exhaust, 2-1/2" Single/2-1/2" Dual
ooooo
ooooo
$61.99
Magnaflow
Muffler, 4" Round Glasspack, Magnaflow, 3" Inlet/Outlet, 18" Body, Aluminized
ooooo
ooooo
$75.99
Magnaflow
Muffler, 3.5" x 7" x 14" Oval Reversible, Magnaflow, Satin 409 Stainless
3 Inlet/Outlet/Size Options
ooooo
ooooo
From
$145.99
Black Widow Exhaust
Exhaust Pipe, Y-Pipe, Black Widow Exhaust, 3" Single/2-1/2" Dual
ooooo
ooooo
$65.99
Magnaflow
Muffler, 6" Round Reversible, Magnaflow, Satin 409SS, Center/Center
8 Length/Size Options
ooooo
ooooo
From
$136.99
Magnaflow
Muffler w/Tip, Comp 5" x 8" x 14" Oval, 2.25" In/4" Rolled Angle Cut, Cntr/Cnter
ooooo
ooooo
$269.99
Thermo-Tec
Heat Barrier, Thermo-Tec, Aluminized, 36"x 20"
ooooo
ooooo
$54.99
Magnaflow
Muffler, 5" x 8" Oval Reversible, MF Race, Brushed 430SS, Center/Center
5 Length/Size Options
ooooo
ooooo
$231.99
Magnaflow
Muffler, 5" x 8" x 14" Oval Reversible, Brushed 430SS, 2.5" Offset One Side
ooooo
ooooo
$174.99
Magnaflow
Muffler w/Tip, Street 5" x 8" x 14" Oval, 2.25" In/Dual 3.125" Rolled Strt Cut
ooooo
ooooo
$348.99
Magnaflow
Muffler, 4" x 9" Oval Reversible, Magnaflow, Satin 409SS, Center/Center
8 Length/Size Options
ooooo
ooooo
From
$131.99
Magnaflow
Muffler, 7" Round Reversible, MF, Brushed 430SS, Center/Center, 14"
2 Size Options
ooooo
ooooo
$157.99
Magnaflow
Muffler, 5" x 8" Oval Reversible, Magnaflow, Satin 409SS, Center/Dual
11 Length/Size Options
ooooo
ooooo
From
$162.99
Page 7 of 10 - 225 Items
«
5
6
7
8
9
»
Page 7 of 10 - 225 Items
«
5
6
7
8
9
»
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