29+ 2003 Chevrolet Express 1500 Mufflers & Resonators Parts

Mufflers & Resonators (29 products)

Quiet-Flow SS Direct Fit Exhaust Muffler 2.625" Outlet (ID)

Walker Exhaust

Part # 21554

Fits All Trims

Quiet-Flow SS Direct Fit Exhaust Muffler 2.625" Outlet (ID)

$139.00

Magnaflow

Part # 24081

Fits All Trims

MagnaFlow Conv DF 03- Chevy Express 4.3L/5.4L

$911.00

Magnaflow

Part # 51092

Fits All Trims

MagnaFlow Conv DF Chevy Express 4.3L/5.4L

$956.00

Magnaflow

Part # 99206HM

Fits All Trims

MagnaFlow Conv Univ 2.50inch

$194.00

Magnaflow

Part # 51006

Fits All Trims

MagnaFlow Conv Univ 2.5in Inlet/Outlet Center/Center Oval 12in Body L x 6.5in W x 16in Overall L

$252.00

Magnaflow

Part # 99006HM

Fits All Trims

MagnaFlow Conv Univ 2.50inch

$242.00

Magnaflow

Part # 99009HM

Fits All Trims

MagnaFlow Conv Univ 3.00inch

$242.00

Magnaflow

Part # 51206

Fits All Trims

MagnaFlow Conv Universal 2.50 OEM

$211.00

Magnaflow

Part # 51009

Fits All Trims

MagnaFlow Conv Universal 3in Inlet/Outlet Center/Center Oval 12in Body L x 6.5in W x 16in Overall L

$252.00

Cometic GM LS1 5.3L/5.7L/6.0L .030 inch MLS Exhaust Gaskets (Pair)

Cometic Gasket

Part # C5818-030

Fits All Trims

Cometic GM LS1 5.3L/5.7L/6.0L .030 inch MLS Exhaust Gaskets (Pair)

$40.41

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Gasket

Victor Reinz

Part # F31619

Fits All Trims

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Gasket

$26.24

MAHLE Original Buick Century 96 Exhaust Gas Recirculation Valve Gasket

Victor Reinz

Part # G31356

Fits All Trims

MAHLE Original Buick Century 96 Exhaust Gas Recirculation Valve Gasket

$14.84

MAHLE Original Buick Rainier 07-04 Exhaust Gas Recirculation To Plenum

Victor Reinz

Part # G31626

Fits All Trims

MAHLE Original Buick Rainier 07-04 Exhaust Gas Recirculation To Plenum

$15.00

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Packing Ring

Victor Reinz

Part # F31618

Fits All Trims

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Packing Ring

$20.21

Fel-Pro

Part # ES75103

Fits All Trims

Fel-Pro Chevrolet K1500 ES 75103 Exhaust Flange Stud and Nut

$29.98

MAHLE Original Buick Lucerne 11-06 Exhaust Gas Recirculation Valve Gasket

Victor Reinz

Part # G31620

Fits All Trims

MAHLE Original Buick Lucerne 11-06 Exhaust Gas Recirculation Valve Gasket

$15.48

Magnaflow

Part # 445006

Fits All Trims

MagnaFlow Conv Univ 2.5inch CA OBDII

$603.00

Cometic GM Gen-3/4 Small Block V8 MLS Exhaust Manifold Gasket Set

Cometic Gasket

Part # C15547

Fits All Trims

Cometic GM Gen-3/4 Small Block V8 MLS Exhaust Manifold Gasket Set

$61.43

Cometic GM Gen-3/4 Small Block V8 .060in HTS Exhaust Manifold Gasket Set

Cometic Gasket

Part # C5818HTS

Fits All Trims

Cometic GM Gen-3/4 Small Block V8 .060in HTS Exhaust Manifold Gasket Set

$41.16

Magnaflow

Part # 4451211

Fits All Trims

Magnaflow 03-06 Chevrolet Express 1500 4.3L Direct Fit Converter

$2300.00

Frequently Asked Questions

Do these parts fit my 2003 Chevrolet Express 1500?

This page groups parts listed for the 2003 Chevrolet Express 1500. 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 2003 Chevrolet Express 1500?

We offer a wide selection of mufflers & resonators parts for the 2003 Chevrolet Express 1500. 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 2003 Chevrolet Express 1500?

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

How fast do 2003 Chevrolet Express 1500 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 2003 Chevrolet Express 1500 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.

2003 Chevrolet Express 1500(3,176 parts)

Shop by Problem

Other Chevrolet Express 1500 Years

2003 Chevrolet Express 1500(3,176 parts)

Shop by Problem

Other Chevrolet Express 1500 Years

Mufflers & Resonators (29 products)

Quiet-Flow SS Direct Fit Exhaust Muffler 2.625" Outlet (ID)

MagnaFlow Conv DF 03- Chevy Express 4.3L/5.4L

MagnaFlow Conv DF Chevy Express 4.3L/5.4L

MagnaFlow Conv Univ 2.50inch

MagnaFlow Conv Univ 2.5in Inlet/Outlet Center/Center Oval 12in Body L x 6.5in W x 16in Overall L

MagnaFlow Conv Univ 2.50inch

MagnaFlow Conv Univ 3.00inch

MagnaFlow Conv Universal 2.50 OEM

MagnaFlow Conv Universal 3in Inlet/Outlet Center/Center Oval 12in Body L x 6.5in W x 16in Overall L

Cometic GM LS1 5.3L/5.7L/6.0L .030 inch MLS Exhaust Gaskets (Pair)

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Gasket

MAHLE Original Buick Century 96 Exhaust Gas Recirculation Valve Gasket

MAHLE Original Buick Rainier 07-04 Exhaust Gas Recirculation To Plenum

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Packing Ring

Fel-Pro Chevrolet K1500 ES 75103 Exhaust Flange Stud and Nut

MAHLE Original Buick Lucerne 11-06 Exhaust Gas Recirculation Valve Gasket

MagnaFlow Conv Univ 2.5inch CA OBDII

Cometic GM Gen-3/4 Small Block V8 MLS Exhaust Manifold Gasket Set

Cometic GM Gen-3/4 Small Block V8 .060in HTS Exhaust Manifold Gasket Set

Magnaflow 03-06 Chevrolet Express 1500 4.3L Direct Fit Converter

Frequently Asked Questions

Do these parts fit my 2003 Chevrolet Express 1500?

What mufflers & resonators options are available for my 2003 Chevrolet Express 1500?

What brands make parts for the 2003 Chevrolet Express 1500?

How fast do 2003 Chevrolet Express 1500 parts ship?

What warranty do your 2003 Chevrolet Express 1500 parts come with?