Walker Exhaust Clamp, 35793
In stock
$4.39
Listed as compatible with this vehicle by the retailer feed.
Check price2021 GMC Sierra 1500 Exhaust Systems
40 products listed for this model year in the retailer catalog. Check engine and trim details before ordering.
Back to 2021 GMC Sierra 1500 parts
Walker Exhaust Pipe Flange Gasket, 31337
In stock
$5.49
Listed as compatible with this vehicle by the retailer feed.
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Felpro Exhaust Pipe Flange Gasket, 61089
In stock
$6.99
Listed as compatible with this vehicle by the retailer feed.
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Walker Exhaust Pipe Flange Gasket, 31640
In stock
$7.49
Listed as compatible with this vehicle by the retailer feed.
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Walker Exhaust Clamp, Pipe Diameter: 2.5", Bolt Diameter: 0.375", Nut Type: Hex, 35337
In stock
$7.69
Listed as compatible with this vehicle by the retailer feed.
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Felpro Exhaust Pipe Flange Gasket, 61074
In stock
$8.79
Listed as compatible with this vehicle by the retailer feed.
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Walker Exhaust System Hanger Insulator, 35230
In stock
$15.99
Listed as compatible with this vehicle by the retailer feed.
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Walker Exhaust System Hanger Insulator, 35017
In stock
$16.29
Listed as compatible with this vehicle by the retailer feed.
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Dynomax Exhaust Bolt, 36490
In stock
$16.49
Listed as compatible with this vehicle by the retailer feed.
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Walker Mega-Clamp Exhaust Clamp Maximum Diameter 2.500 IN, 33226
In stock
$21.99
Listed as compatible with this vehicle by the retailer feed.
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Walker Mega-Clamp Exhaust Clamp Maximum Diameter 3.000 IN, 33272
In stock
$24.29
Listed as compatible with this vehicle by the retailer feed.
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Felpro Exhaust Manifold Hardware Kit, ES 75120
In stock
$28.49
Listed as compatible with this vehicle by the retailer feed.
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Felpro Exhaust Manifold Gasket Set, MS 97405
In stock
$34.99
Listed as compatible with this vehicle by the retailer feed.
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Walker Exhaust Clamp, 36545
In stock
$37.99
Listed as compatible with this vehicle by the retailer feed.
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Felpro Engine Camshaft Thrust Plate, ES 73115
In stock
$43.99
Listed as compatible with this vehicle by the retailer feed.
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MBRP Exhaust T-409 Stainless Steel, 3"Dia Pipe, S5001409
In stock
$125.99
Listed as compatible with this vehicle by the retailer feed.
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Flowmaster Inc. 40 Series Muffler 409S - 3.00 Offset In - 3.00 Center Out - Aggressive Sound, 8043041
In stock
$135.99
Listed as compatible with this vehicle by the retailer feed.
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Flowmaster Inc. Super 50 Muffler - 3.00 Offset In - 3.00 Center Out - Moderate Sound, 53056
In stock
$204.99
Listed as compatible with this vehicle by the retailer feed.
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MagnaFlow D-Fit Series Exhaust Muffler Kit, 19476
In stock
$214.99
Listed as compatible with this vehicle by the retailer feed.
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Dynomax Ultra Flo Exhaust Muffler 3 Inch Inlet ID 3 Inch Outlet ID, 17547
In stock
$251.99
Listed as compatible with this vehicle by the retailer feed.
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MagnaFlow D-Fit Series Performance Exhaust Muffler Replacement Kit Direct-Fit With Muffler, 19533
In stock
$761.99
Listed as compatible with this vehicle by the retailer feed.
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Borla Performance Exhaust SS, 3"Dia Pipe, Single Exhaust With Single Exit, Single Passenger Side Rear Exit, 140794
In stock
$1,098.00
Listed as compatible with this vehicle by the retailer feed.
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Borla Performance Exhaust SS, 3"Dia Pipe, Single Exhaust With Single Exit, Single Passenger Side Rear Exit, 140794BC
In stock
$1,150.00
Listed as compatible with this vehicle by the retailer feed.
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MagnaFlow Street Series Cat-Back Performance Exhaust System, 19469
In stock
$1,209.99
Listed as compatible with this vehicle by the retailer feed.
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This site contains affiliate links. We may earn a commission if you buy through them. We do not sell these products or guarantee merchant inventory. Compatibility is listed by the retailer feed for this vehicle; it is not an OEM confirmation. Catalog snapshot: Aug 15, 2026.