Walker CalCat CARB Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID), 82618
In stock
$706.99
Listed as compatible with this vehicle by the retailer feed.
Check price1999 Buick Regal Exhaust Systems
28 products listed as compatible with this vehicle by the retailer feed.
Back to 1999 Buick Regal parts
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter, 448306
In stock
$782.99
Listed as compatible with this vehicle by the retailer feed.
Check price
MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter, 4481405
In stock
$1,428.00
Listed as compatible with this vehicle by the retailer feed.
Check price
Dorman Exhaust Manifold Crossover Pipe, 679-003
Out of stock
$450.99
Listed as compatible with this vehicle by the retailer feed.
Check price
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.