MagnaFlow California Grade CARB Compliant Universal Catalytic Converter, 445006
In stock
$603.99
Listed as compatible with this vehicle by the retailer feed.
Check price2003 GMC Envoy XL Exhaust Systems
30 products listed for this model year in the retailer catalog. Check engine and trim details before ordering.
Back to 2003 GMC Envoy XL parts
Walker CalCat CARB Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID), 83403
In stock
$613.99
Listed as compatible with this vehicle by the retailer feed.
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Walker CalCat CARB Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID), 83508
In stock
$661.99
Listed as compatible with this vehicle by the retailer feed.
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Walker CalCat CARB Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID), 81918
In stock
$1,269.00
Listed as compatible with this vehicle by the retailer feed.
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MAHLE Original EGR Valve Gasket, G31755
Out of stock
$7.99
Listed as compatible with this vehicle by the retailer feed.
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BRExhaust Exhaust Direct-Fit Muffler Assembly, 166-647
Out of stock
$219.99
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.