1991 Infiniti Q45 Catalytic Converter
Navigate our online catalogue to find original replacement Catalytic Converters specifically designed to fit a 1991 Infiniti Q45.


Catalytic Converter
$190.02
$159.41
In Stock
Ships: Thursday Oct. 2nd
Pick-Up: Ready in 1 Hour Thursday Oct. 2nd
Pick-Up: Ready in 1 Hour Thursday Oct. 2nd
Left (Driver Side)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Vehicle Fitment Notes:
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation

Catalytic Converter
$190.02
$159.41
In Stock
Ships: Thursday Oct. 2nd
Pick-Up: Ready in 1 Hour Thursday Oct. 2nd
Pick-Up: Ready in 1 Hour Thursday Oct. 2nd
Right (Passenger Side)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Vehicle Fitment Notes:
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation

Catalytic Converter
$255.00
$142.23
Out of Stock
Rear Left (Driver Side)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Vehicle Fitment Notes:
CARB Executive Order D-182-39 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Universal Type Modifications and/or Additional Parts May Be Required for Installation
CARB Executive Order D-182-39 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Universal Type Modifications and/or Additional Parts May Be Required for Installation

Catalytic Converter
$255.00
$142.23
Out of Stock
Rear Right (Passenger Side)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Vehicle Fitment Notes:
CARB Executive Order D-182-39 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Universal Type Modifications and/or Additional Parts May Be Required for Installation
CARB Executive Order D-182-39 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Universal Type Modifications and/or Additional Parts May Be Required for Installation

Catalytic Converter
$257.59
$143.67
Out of Stock
Front Left (Driver Side)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Vehicle Fitment Notes:
CARB Executive Order D-182-39 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Universal Type Modifications and/or Additional Parts May Be Required for Installation
CARB Executive Order D-182-39 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Universal Type Modifications and/or Additional Parts May Be Required for Installation

Catalytic Converter
$257.59
$143.67
Out of Stock
Front Right (Passenger Side)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Engine Base: 4.5L 4494cc (-CID) V8 Bore 93.0cm (3.66in.) Stroke 82.7cm (3.26in.);
Vehicle Fitment Notes:
CARB Executive Order D-182-39 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Universal Type Modifications and/or Additional Parts May Be Required for Installation
CARB Executive Order D-182-39 Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Universal Type Modifications and/or Additional Parts May Be Required for Installation