Walker Exhaust Pipe Flange Gasket, 31311
In stock
$3.59
Listed as compatible with this vehicle by the retailer feed.
Check price2003 Cadillac CTS Exhaust Systems
7 products listed as compatible with this vehicle by the retailer feed.
Back to 2003 Cadillac CTS parts
Felpro Exhaust Pipe Flange Gasket, 61525
In stock
$9.49
Listed as compatible with this vehicle by the retailer feed.
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Walker Exhaust Pipe Flange Gasket, 31357
In stock
$19.79
Listed as compatible with this vehicle by the retailer feed.
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BRExhaust Exhaust Premium Universal Muffler, 100-7175
In stock
$185.99
Listed as compatible with this vehicle by the retailer feed.
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MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter, 51137
In stock
$561.99
Listed as compatible with this vehicle by the retailer feed.
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Walker CalCat CARB Universal Catalytic Converter 2" Inlet (ID) 2" Outlet (ID), 82603
In stock
$788.99
Listed as compatible with this vehicle by the retailer feed.
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MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter, 4481699
In stock
$1,555.00
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.