78+ 2003 GMC Sierra 2500 HD Mufflers & Resonators Base Parts - Page 3

Base · Mufflers & Resonators (77 products)

Exact-fit parts for the 2003 GMC Sierra 2500 HD Base.

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

Victor Reinz

Part # G31626

Confirmed Fit

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

$15.00

Banks Power

Part # 53799

Confirmed Fit

Banks Power Straight Pipe Kit (Replaces Muffler 53801)

$65.00

MAHLE Original Chevrolet Silverado 2500 Hd 04-01 Turbocharger To Throttle Body

Victor Reinz

Part # B32478

Confirmed Fit

MAHLE Original Chevrolet Silverado 2500 Hd 04-01 Turbocharger To Throttle Body

$2.87

JBA 01-06 GM Truck 8.1L (w/4L80-E Trans) 409SS Emissions Legal Mid Pipes

JBA

Part # 1860SY-1

Confirmed Fit

JBA 01-06 GM Truck 8.1L (w/4L80-E Trans) 409SS Emissions Legal Mid Pipes

$346.98

Fel-Pro

Part # 61323

Confirmed Fit

Fel-Pro 09-13 Chevrolet Silverado 1500/08-13 Tahoe Exhaust Pipe Flange Gasket

$9.59

Heavy Duty Direct Fit Exhaust Muffler 4" Inlet (ID) 4" Outlet (ID)

Walker Exhaust

Part # 21172

Fits with Conditions

Heavy Duty Direct Fit Exhaust Muffler 4" Inlet (ID) 4" Outlet (ID)

$90.76

Wehrli

Part # WCF100652

Confirmed Fit

Wehrli 01-16 Chevrolet 6.6L Duramax 2in Stainless Driver Side Up Pipe w/Gaskets (Single/Twin Turbo)

$353.28

Quiet-Flow Direct Fit Exhaust Muffler 3" Inlet (ID) 3" Outlet (ID)

Walker Exhaust

Part # 22307

Fits with Conditions

Quiet-Flow Direct Fit Exhaust Muffler 3" Inlet (ID) 3" Outlet (ID)

$215.67

Corsa 2009-2013 Inlet 4in Pro Series Twin Side Swept Exhaust Tip Kit

CORSA Performance

Part # 14031

Confirmed Fit

Corsa 2009-2013 Inlet 4in Pro Series Twin Side Swept Exhaust Tip Kit

$349.18

Magnaflow

Part # 51009

Confirmed Fit

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

$252.00

MAHLE Original Chevrolet Silverado 2500 Hd 03-02 Exhaust Gas Recirculation Valve Gasket

Victor Reinz

Part # F31901

Confirmed Fit

MAHLE Original Chevrolet Silverado 2500 Hd 03-02 Exhaust Gas Recirculation Valve Gasket

$15.44

MAHLE Original Chevrolet Express 2500 09-06 Turbocharger Mounting Set

Victor Reinz

Part # GS33678

Confirmed Fit

MAHLE Original Chevrolet Express 2500 09-06 Turbocharger Mounting Set

$74.80

Magnaflow

Part # 447209

Confirmed Fit

MagnaFlow Conv Universal 3 inch OBDII Rear

$425.00

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Packing Ring

Victor Reinz

Part # F31618

Confirmed Fit

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Packing Ring

$20.21

Magnaflow

Part # 99759HM

Confirmed Fit

Magnaflow Conv Univ 3.0in. C/C spun body

$248.00

aFe

Part # 49-04093

Confirmed Fit

aFe Downpipe

$281.60

Magnaflow

Part # 4551602

Confirmed Fit

Magnaflow 2003 GMC Savana 3500 6.0L Direct Fit Converter

$2035.00

Magnaflow

Part # 51759

Confirmed Fit

MagnaFlow Conv DF 98-04 VW Beetle 1.9L

$258.00

MAHLE Original Buick Allure 09-05 Exhaust Gas Recirculation Valve Gasket

Victor Reinz

Part # G31276

Confirmed Fit

MAHLE Original Buick Allure 09-05 Exhaust Gas Recirculation Valve Gasket

$14.84

Fel-Pro

Part # ES75120

Confirmed Fit

Fel-Pro 03-13 Chevrolet Silverado 1500/00-09 Tahoe Exhaust Manifold Hardware Kit

$35.39

Frequently Asked Questions

Do these parts fit my 2003 GMC Sierra 2500 HD Base?

This page groups parts listed for the 2003 GMC Sierra 2500 HD Base. 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 GMC Sierra 2500 HD Base?

We offer a wide selection of mufflers & resonators parts for the 2003 GMC Sierra 2500 HD Base. 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 GMC Sierra 2500 HD Base?

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

How fast do 2003 GMC Sierra 2500 HD Base 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 GMC Sierra 2500 HD Base 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 GMC Sierra 2500 HD(5,164 parts)

2003 GMC Sierra 2500 HD(5,164 parts)

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Other GMC Sierra 2500 HD Years

Base · Mufflers & Resonators (77 products)

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

Banks Power Straight Pipe Kit (Replaces Muffler 53801)

MAHLE Original Chevrolet Silverado 2500 Hd 04-01 Turbocharger To Throttle Body

JBA 01-06 GM Truck 8.1L (w/4L80-E Trans) 409SS Emissions Legal Mid Pipes

Fel-Pro 09-13 Chevrolet Silverado 1500/08-13 Tahoe Exhaust Pipe Flange Gasket

Heavy Duty Direct Fit Exhaust Muffler 4" Inlet (ID) 4" Outlet (ID)

Wehrli 01-16 Chevrolet 6.6L Duramax 2in Stainless Driver Side Up Pipe w/Gaskets (Single/Twin Turbo)

Quiet-Flow Direct Fit Exhaust Muffler 3" Inlet (ID) 3" Outlet (ID)

Corsa 2009-2013 Inlet 4in Pro Series Twin Side Swept Exhaust Tip Kit

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

MAHLE Original Chevrolet Silverado 2500 Hd 03-02 Exhaust Gas Recirculation Valve Gasket

MAHLE Original Chevrolet Express 2500 09-06 Turbocharger Mounting Set

MagnaFlow Conv Universal 3 inch OBDII Rear

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Packing Ring

Magnaflow Conv Univ 3.0in. C/C spun body

aFe Downpipe

Magnaflow 2003 GMC Savana 3500 6.0L Direct Fit Converter

MagnaFlow Conv DF 98-04 VW Beetle 1.9L

MAHLE Original Buick Allure 09-05 Exhaust Gas Recirculation Valve Gasket

Fel-Pro 03-13 Chevrolet Silverado 1500/00-09 Tahoe Exhaust Manifold Hardware Kit

Frequently Asked Questions

Do these parts fit my 2003 GMC Sierra 2500 HD Base?

What mufflers & resonators options are available for my 2003 GMC Sierra 2500 HD Base?

What brands make parts for the 2003 GMC Sierra 2500 HD Base?

How fast do 2003 GMC Sierra 2500 HD Base parts ship?

What warranty do your 2003 GMC Sierra 2500 HD Base parts come with?