MagnaFlow HM Grade Federal / EPA Compliant Universal Catalytic Converter, 99305HM
In stock
$204.99
Listed as compatible with this vehicle by the retailer feed.
Check priceSearch parts for your 2004 Audi A4
9 products matching “Catalytic Converter” listed as compatible with this vehicle.
MagnaFlow HM Grade Federal / EPA Compliant Universal Catalytic Converter, 99355HM
In stock
$206.99
Listed as compatible with this vehicle by the retailer feed.
Check price
MagnaFlow OEM Grade Federal / EPA Compliant Universal Catalytic Converter, 51235
In stock
$214.99
Listed as compatible with this vehicle by the retailer feed.
Check price
Walker Ultra EPA Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID), 93271
In stock
$261.99
Listed as compatible with this vehicle by the retailer feed.
Check price
Walker Ultra EPA Direct Fit Catalytic Converter Overall Length 15.375 IN, 16087
In stock
$1,007.00
Listed as compatible with this vehicle by the retailer feed.
Check price
MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter, 51461
In stock
$1,008.00
Listed as compatible with this vehicle by the retailer feed.
Check price
MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter, 51462
In stock
$1,079.00
Listed as compatible with this vehicle by the retailer feed.
Check price
MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter, 51644
In stock
$1,122.00
Listed as compatible with this vehicle by the retailer feed.
Check price
MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter, 4561062
Out of stock
$1,128.00
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.