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Catalytic Converter for 1999 Infiniti Q45

We have 8 Items In-stock.

Magnaflow California Legal Semi-Universal Catalytic Converter

  • 50-State/California Legal
  • Semi-universal design – cut out your old catalytic converter and weld in the new one
  • Stainless Steel Construction
  • Legendary Magnaflow quality, power, and sound
  • Ceramic, honeycomb catalyst designed for maximum flow and surface area

When you want the best, you want Magnaflow!  These semi-universal 50-State Legal catalytic converters have a catalyst specifically designed for your vehicle – just cut out your old catalytic converter and weld in the new one.  Engineered to cut emissions and improve performance.

Magnaflow 50-State Semi-Universal Rear, Passenger Side Catalytic Converter - Traditional Converter, Semi-Universal

$169.21 $218.98 You Save $49.77 (23%)
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Availability: In Stock
Only from APW Rewards
  • Sku#: M66441305
  • Location: Rear, Passenger Side
  • Series: Magnaflow 50-State Semi-Universal
  • Type: Traditional Converter
  • Emissions: 50-State Legal
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • E O Number: D-193-96
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 13 in. overall length
  • Notes: Inlet/Outlet Size : 2.25in. I.D.
  • Warranty: Magnaflow 5 year / 50,000 Mile Warranty
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Fits the following 1999 Infiniti Q45 Submodels

  • 8 Cyl 4.1L | Base, T
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Magnaflow 50-State Semi-Universal Front, Driver Or Passenger Side Catalytic Converter - Traditional Converter, Semi-Universal

$185.78 $240.43 You Save $54.65 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: M66444106
  • Location: Front, Driver Or Passenger Side
  • Series: Magnaflow 50-State Semi-Universal
  • Type: Traditional Converter
  • Emissions: 50-State Legal
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • E O Number: D-193-96
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 13 in. overall length
  • Notes: Inlet/Outlet Size : 2.5in. I.D.
  • Warranty: Magnaflow 5 year / 50,000 Mile Warranty
See more

Fits the following 1999 Infiniti Q45 Submodels

  • 8 Cyl 4.1L | Base, T
See more

Magnaflow 50-State Semi-Universal Rear, Driver Or Passenger Side Catalytic Converter - Traditional Converter, Semi-Universal

$169.21 $218.98 You Save $49.77 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: M66441306
  • Location: Rear, Driver Or Passenger Side
  • Series: Magnaflow 50-State Semi-Universal
  • Type: Traditional Converter
  • Emissions: 50-State Legal
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • E O Number: D-193-96
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 13 in. overall length
  • Notes: Inlet/Outlet Size : 2.5in. I.D.
  • Warranty: Magnaflow 5 year / 50,000 Mile Warranty
See more

Fits the following 1999 Infiniti Q45 Submodels

  • 8 Cyl 4.1L | Base, T
See more

Davico - OE Replacement Catalytic Converters (48-State Legal - No CA, No NY)

DAVICO - OE REPLACEMENT CATALYTIC CONVERTERS (48-STATE LEGAL - NO CA, NO NY)

When it comes to catalytic converters, turn to Davico. Davico's line of OE replacement catalytic converters is specifically designed to work like the original unit that came installed on your vehicle, delivering solid performance and an exact fit. Each and every one of Davico's OE replacement catalytic converters is crafted within strict standards.

Davico Standard Passenger Side Catalytic Converter - Traditional Converter, Direct Fit

$372.57 $706.60 You Save $334.03 (47%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: DAV18069
  • Location: Passenger Side
  • Series: Davico Standard
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 42.5 in. overall length
  • Warranty: 2-year or 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and welds
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Fits the following 1999 Infiniti Q45 Submodels

  • 8 Cyl 4.1L | Base, T
See more

Davico Exact Fit Passenger Side Catalytic Converter - Traditional Converter, Direct Fit

$457.29 $539.60 You Save $82.31 (15%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: DAV48069
  • Location: Passenger Side
  • Series: Davico Exact Fit
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: 2-year or 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and welds
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Fits the following 1999 Infiniti Q45 Submodels

  • 8 Cyl 4.1L | Base, T
See more

Benchmark - OE Replacement Catalytic Converters (48-State Legal - No CA, No NY)

BENCHMARK - OE REPLACEMENT CATALYTIC CONVERTERS (48-STATE LEGAL - NO CA, NO NY)

Benchmark's OE replacement catalytic converters set the industry standard in terms of fitment and durability. Their performance is closely monitored and backed by Benchmark's emissions laboratory, ensuring quality loadings that eliminate OBDII issues caused by many universal catalytic converters.

Notes:

  • 48-state legal - cannot be shipped to New York or California; not for sale or use in New York or California.

Benchmark Driver Side Catalytic Converter - Traditional Converter, Direct Fit

$380.00 $1,140.00 You Save $760.00 (67%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: BEN4514D
  • Location: Driver Side
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: 5-year or 50,000-mile Benchmark limited warranty
See more

Fits the following 1999 Infiniti Q45 Submodels

  • 8 Cyl 4.1L | Base, T
See more

Benchmark Passenger Side Catalytic Converter - Traditional Converter, Direct Fit

$380.00 $1,140.00 You Save $760.00 (67%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: BEN4514P
  • Location: Passenger Side
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: 5-year or 50,000-mile Benchmark limited warranty
See more

Fits the following 1999 Infiniti Q45 Submodels

  • 8 Cyl 4.1L | Base, T
See more

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