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Exhaust Parts
Catalytic Converters
Chevy
Silverado 3500
2003 Chevy Silverado 3500
Catalytic Converters & Components
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6.0L
6.6L
8.1L
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Performance
High-performance upgrades for maximum power
Replacement
OEM-quality replacement components
MagnaFlow® - Diesel Direct Fit Catalytic Converter
36
# 6551734418
$840.00
MagnaFlow® - Diesel Universal Fit Round Body Catalytic Converter
42
# 1198334222
$551.00
MagnaFlow® - Heavy Metal Direct Fit Catalytic Converter
36
# mpn1136952
$744.00
MagnaFlow® - Heavy Metal Non-Heatshield Covered Universal Fit Round Body Catalytic Converter
42
# mpn2567701666
$248.00
MagnaFlow® - OBDII Direct Fit Catalytic Converter
36
# 6551739224
$1,674.00
MagnaFlow® - OBDII Universal Fit Oval Body Catalytic Converter
42
# 1198309146
$425.00 - $603.00
MagnaFlow® - OEM Grade Direct Fit Catalytic Converter
16
# 2671480532
$487.00 - $782.00
MagnaFlow® - OEM Grade Universal Fit Round Body Catalytic Converter
42
# 6043582189
$258.00
Davico® - Direct Fit Catalytic Converter
12
# 1198339384
$611.62
+ Free Shipping
with iD FastTrack
Davico® - Direct Fit Catalytic Converter and Pipe Assembly
14
# 6473887103
$419.52 - $455.52
AP Exhaust® - Universal Fit Catalytic Converter
40
# 1198334141
$301.13 - $374.56
+ Free Shipping
with iD FastTrack
Walker® - CalCat™ Universal Fit Catalytic Converter
82
# 1198334121
$319.94
+ Free Shipping
with iD FastTrack
Walker® - Ultra™ Direct Fit Small Oval Body Catalytic Converter and Pipe Assembly
24
# 6551873326
$439.18
AP Exhaust® - 774 Series Universal Fit Catalytic Converter
40
# 6334473485
$555.68
+ Save an extra
$24.00
with iD FastTrack
AP Exhaust® - Direct Fit Catalytic Converter and Pipe Assembly
21
# 1198334152
$647.20 - $684.96
Eastern Catalytic® - ECO II Direct Fit Catalytic Converter and Pipe Assembly
28
# 6551693283
$632.05
Eastern Catalytic® - Standard Universal Fit Large Oval Body Catalytic Converter
28
# 1198309132
$247.36
AB Catalytic® - Direct Fit Catalytic Converter and Pipe Assembly
0
# mpn5281648614
$449.18
CATCO® - 776 Series Universal Fit Large Oval Body Catalytic Converter
6
# 6693516136
$1,032.05
CATCO® - 91 Series Universal Fit Catalytic Converter
6
# 6693764436
$421.06 - $782.44
CATCO® - Direct Fit Catalytic Converter and Pipe Assembly
6
# 6401268569
$743.96 - $860.87
DieselTech® - Diesel Oxidation Catalyst
3
# mpn5272153081
$801.74
JBA® - Catalytic Converter Gasket
0
# 1198334219
$10.61
Mahle® - Catalytic Converter Gasket
0
# mpn4751357971
$11.35
Victor Reinz® - Catalytic Converter Gasket
0
# mpn4738015196
$9.58
AP Exhaust® - 774 Series Universal Fit Catalytic Converter$555.68 + Save an extra $24.00 with iD FastTrack
