48+ 1978 Chevrolet C20 Suburban Mufflers & Resonators Parts

Mufflers & Resonators (48 products)

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .060in HTS Exhaust Manifold Gasket Set

Cometic Gasket

Part # C5896HTS

Fits All Trims

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .060in HTS Exhaust Manifold Gasket Set

$32.70

Quiet-Flow Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD)

Walker Exhaust

Part # 21784

Fits All Trims

Quiet-Flow Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD)

$55.69

SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD)

Walker Exhaust

Part # 18293

Fits All Trims

SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD)

$41.09

SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)

Walker Exhaust

Part # 18274

Fits All Trims

SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)

$46.53

Fel-Pro

Part # 9672

Fits All Trims

Fel-Pro Chevrolet Camaro 9672 Exhaust Pipe Flange Gasket

$4.92

Cometic Chevy Mark-IV BB V8 .064in ArmorCore Exhaust Mani Gasket Set

Cometic Gasket

Part # C5429-064

Fits All Trims

Cometic Chevy Mark-IV BB V8 .064in ArmorCore Exhaust Mani Gasket Set

$30.81

Cometic GM BBC 2.250in Round Port - 030in MLS Exhaust Gasket

Cometic Gasket

Part # C5251-030

Fits All Trims

Cometic GM BBC 2.250in Round Port - 030in MLS Exhaust Gasket

$54.48

Quiet-Flow SS Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)

Walker Exhaust

Part # 21910

Fits All Trims

Quiet-Flow SS Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)

$77.11

Magnaflow

Part # 3391432

Fits All Trims

MagnaFlow Conv DF 1994 GMA G3500 V6 4.3L

$1158.00

MAHLE Original Buick Century 80-77 Exhaust Gas Recirculation Valve Gasket

Victor Reinz

Part # G26748

Fits All Trims

MAHLE Original Buick Century 80-77 Exhaust Gas Recirculation Valve Gasket

$15.67

MAHLE Original Checker Marathon 69-65 Exhaust Pipe Packing Ring

Victor Reinz

Part # F7139

Fits All Trims

MAHLE Original Checker Marathon 69-65 Exhaust Pipe Packing Ring

$15.27

MAHLE Original Chevrolet 3A 59 Exhaust Pipe Flange Gasket

Victor Reinz

Part # F7135

Fits All Trims

MAHLE Original Chevrolet 3A 59 Exhaust Pipe Flange Gasket

$17.09

MAHLE Original Buick Apollo 75-73 Intake To Exhaust Hot Spot

Victor Reinz

Part # B7354

Fits All Trims

MAHLE Original Buick Apollo 75-73 Intake To Exhaust Hot Spot

$15.73

Cometic Chevy Mark-IV BB V8 .064in ArmorCore Exhaust Mani Gskt Set-Brodix Big Duke/Head Hunter Heads

Cometic Gasket

Part # C5418-064

Fits All Trims

Cometic Chevy Mark-IV BB V8 .064in ArmorCore Exhaust Mani Gskt Set-Brodix Big Duke/Head Hunter Heads

$30.81

Cometic GM Gen 1 Small Block 1.450 in x 1.480 in Port Exhaust Manifold Set

Cometic Gasket

Part # C5892-030

Choose Trim

Cometic GM Gen 1 Small Block 1.450 in x 1.480 in Port Exhaust Manifold Set

$51.05

Magnaflow

Part # 93432

Fits All Trims

MagnaFlow Conv DF GM 25inch x 7inch x 4inch 2.5/2.5inch

$219.00

Fel-Pro

Part # 9587

Fits All Trims

Fel-Pro Chevrolet C10 Exhaust Pipe Flange Gasket

$2.24

Fel-Pro

Part # 60986

Fits All Trims

Fel-Pro Chevrolet C10 60986 Exhaust Pipe Flange Gasket

$3.30

Cometic Chevy Gen-4 Big Block V8 .060in HTS Exhaust Manifold Gasket - 2.250in Round Port - 20 Pack

Cometic Gasket

Part # CP5251

Fits All Trims

Cometic Chevy Gen-4 Big Block V8 .060in HTS Exhaust Manifold Gasket - 2.250in Round Port - 20 Pack

$210.88

Cometic Gasket

Part # C5897HTS

Fits All Trims

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .060in HTS Exhaust Manifold Gasket Set

$34.76

Frequently Asked Questions

Do these parts fit my 1978 Chevrolet C20 Suburban?

This page groups parts listed for the 1978 Chevrolet C20 Suburban. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.

What mufflers & resonators options are available for my 1978 Chevrolet C20 Suburban?

We offer a wide selection of mufflers & resonators parts for the 1978 Chevrolet C20 Suburban. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.

What brands make parts for the 1978 Chevrolet C20 Suburban?

We carry parts from trusted brands including Cometic Gasket, Victor Reinz, Magnaflow, Walker Exhaust, and Fel-Pro, plus many more. Filter by brand to find your preferred manufacturer.

How fast do 1978 Chevrolet C20 Suburban parts ship?

Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.

What warranty do your 1978 Chevrolet C20 Suburban parts come with?

Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.

1978 Chevrolet C20 Suburban(3,173 parts)

Shop by Problem

Other Chevrolet C20 Suburban Years

1978 Chevrolet C20 Suburban(3,173 parts)

Shop by Problem

Other Chevrolet C20 Suburban Years

Mufflers & Resonators (48 products)

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .060in HTS Exhaust Manifold Gasket Set

Quiet-Flow Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD)

SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD)

SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)

Fel-Pro Chevrolet Camaro 9672 Exhaust Pipe Flange Gasket

Cometic Chevy Mark-IV BB V8 .064in ArmorCore Exhaust Mani Gasket Set

Cometic GM BBC 2.250in Round Port - 030in MLS Exhaust Gasket

Quiet-Flow SS Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)

MagnaFlow Conv DF 1994 GMA G3500 V6 4.3L

MAHLE Original Buick Century 80-77 Exhaust Gas Recirculation Valve Gasket

MAHLE Original Checker Marathon 69-65 Exhaust Pipe Packing Ring

MAHLE Original Chevrolet 3A 59 Exhaust Pipe Flange Gasket

MAHLE Original Buick Apollo 75-73 Intake To Exhaust Hot Spot

Cometic Chevy Mark-IV BB V8 .064in ArmorCore Exhaust Mani Gskt Set-Brodix Big Duke/Head Hunter Heads

Cometic GM Gen 1 Small Block 1.450 in x 1.480 in Port Exhaust Manifold Set

MagnaFlow Conv DF GM 25inch x 7inch x 4inch 2.5/2.5inch

Fel-Pro Chevrolet C10 Exhaust Pipe Flange Gasket

Fel-Pro Chevrolet C10 60986 Exhaust Pipe Flange Gasket

Cometic Chevy Gen-4 Big Block V8 .060in HTS Exhaust Manifold Gasket - 2.250in Round Port - 20 Pack

Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .060in HTS Exhaust Manifold Gasket Set

Frequently Asked Questions

Do these parts fit my 1978 Chevrolet C20 Suburban?

What mufflers & resonators options are available for my 1978 Chevrolet C20 Suburban?

What brands make parts for the 1978 Chevrolet C20 Suburban?

How fast do 1978 Chevrolet C20 Suburban parts ship?

What warranty do your 1978 Chevrolet C20 Suburban parts come with?