MagnaFlow California Grade CARB Compliant Universal Catalytic Converter, 418006
In stock
$477.99
Listed as compatible with this vehicle by the retailer feed.
Check price1999 Buick LeSabre Exhaust Systems
30 products listed as compatible with this vehicle by the retailer feed.
Back to 1999 Buick LeSabre parts
MagnaFlow HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter, 23400
In stock
$502.99
Listed as compatible with this vehicle by the retailer feed.
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Walker Ultra EPA Direct Fit Catalytic Converter 2.5" Outlet (OD), 15817
In stock
$637.99
Listed as compatible with this vehicle by the retailer feed.
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MagnaFlow California Grade CARB Compliant Universal Catalytic Converter, 448309
In stock
$782.99
Listed as compatible with this vehicle by the retailer feed.
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Walker CalCat Catalytic Converter- CARB Certified, Direct Replacement, No Fabrication Needed, 81967
In stock
$1,077.99
Listed as compatible with this vehicle by the retailer feed.
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Dorman Exhaust Manifold Crossover Pipe, 679-003
Out of stock
$450.99
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.