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Catalytic Converter for 2006 Cadillac STS

We have 37 Items In-stock.

Magnaflow 48-State Legal Direct Fit Catalytic Converters

  • Not legal for use in California or New York
  • Easy bolt-on Installation with no cutting, welding or bending required
  • 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 48-State Legal direct-fit catalytic converters are specifically designed to fit your vehicle with a no-hassle installation – no cutting, welding, or bending required.  Engineered to cut emissions and improve performance.

Magnaflow 49-State Direct Fit Left Catalytic Converter - Traditional Converter, Direct Fit

$267.34 $345.97 You Save $78.63 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: M6624232
  • Location: Left
  • Series: Magnaflow 49-State Direct Fit
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Notes: Gaskets Included
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
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Fits the following 2006 Cadillac STS Submodels

  • 6 Cyl 3.6L | Base
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Magnaflow 49-State Direct Fit Passenger Side Catalytic Converter - Traditional Converter, Direct Fit

$417.75 $540.62 You Save $122.87 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: M6624930
  • Location: Passenger Side
  • Series: Magnaflow 49-State Direct Fit
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
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Fits the following 2006 Cadillac STS Submodels

  • 6 Cyl 3.6L | Base
See more

Magnaflow 49-State Direct Fit Driver Side Catalytic Converter - Manifold Converter, Direct Fit

$411.36 $532.35 You Save $120.99 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: M6650760
  • Location: Driver Side
  • Series: Magnaflow 49-State Direct Fit
  • Type: Manifold Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Notes: Exhaust Manifold with Integrated Catalytic Converter Federal (Exc.CA)
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
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Fits the following 2006 Cadillac STS Submodels

  • 8 Cyl 4.6L | Base
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Magnaflow OEM Grade (48-State Legal) Direct Fit Catalytic Converters

  • Not legal for use in California or New York
  • Designed for vehicles equipped with California emissions but not registered or driven in a state adopting the California emissions standards (see item details for more information)
  • Easy bolt-on Installation with no cutting, welding or bending required
  • 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 48-State Legal direct-fit catalytic converters are specifically designed to fit your vehicle with a no-hassle installation – no cutting, welding, or bending required.  Engineered to cut emissions and improve performance.

Magnaflow OEM Grade (49-State) Direct Fit Passenger Side Catalytic Converter - Traditional Converter, Direct Fit

$496.20 $642.14 You Save $145.94 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: M6649884
  • Location: Passenger Side
  • Series: Magnaflow OEM Grade (49-State) Direct Fit
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 9 in. length, 17.5 in. overall length
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
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Fits the following 2006 Cadillac STS Submodels

  • 6 Cyl 3.6L | Base
See more

Magnaflow OEM Grade (49-State) Direct Fit Driver Side Catalytic Converter - Traditional Converter, Direct Fit

$496.20 $642.14 You Save $145.94 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: M6649885
  • Location: Driver Side
  • Series: Magnaflow OEM Grade (49-State) Direct Fit
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 9 in. length, 16.21 in. overall length
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
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Fits the following 2006 Cadillac STS Submodels

  • 6 Cyl 3.6L | Base
See more

Magnaflow OEM Grade (49-State) Direct Fit Driver Side Catalytic Converter - Manifold Converter, Direct Fit

$470.19 $608.48 You Save $138.29 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: M6651070
  • Location: Driver Side
  • Series: Magnaflow OEM Grade (49-State) Direct Fit
  • Type: Manifold Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Notes: Exhaust Manifold with Integrated Catalytic Converter OEM GRADE Federal (Exc.CA)
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
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Fits the following 2006 Cadillac STS Submodels

  • 8 Cyl 4.6L | Base
See more

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

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

Eastern's OE replacement catalytic converters are equipped with advanced design elements and NANO technology for maximum performance. Since 1976, Eastern Catalytic has specialized in engineering world-class catalytic converters for the automotive aftermarket.

  • NANO technology provides greater converter efficiency
  • Designed with advanced materials and OE-style flex assemblies and flanges
  • Facilitates optimal engine performance
  • Full range of outlet and inlet diameters
Note:
  • 48-state legal - not for sale or use in New York or California; cannot be shipped to New York or California addresses.

Eastern ECO GM Passenger Side Catalytic Converter - Traditional Converter, Direct Fit

Best Seller
$261.65 $308.75 You Save $47.10 (15%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: EAST50444
  • Location: Passenger Side
  • Series: Eastern ECO GM
  • 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: 19.88 in. overall length
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
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Fits the following 2006 Cadillac STS Submodels

  • 6 Cyl 3.6L | Base
See more

Eastern ECO GM Driver Side Catalytic Converter - Traditional Converter, Direct Fit

Best Seller
$262.38 $309.61 You Save $47.23 (15%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: EAST50443
  • Location: Driver Side
  • Series: Eastern ECO GM
  • 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: 16.25 in. overall length
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
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Fits the following 2006 Cadillac STS Submodels

  • 6 Cyl 3.6L | Base
See more

Eastern ECO GM Front, Driver Side Catalytic Converter - Manifold Converter, Direct Fit

$379.00 $447.22 You Save $68.22 (15%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: EAST50464
  • Location: Front, Driver Side
  • Series: Eastern ECO GM
  • Type: Manifold 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 Eastern limited warranty
See more

Fits the following 2006 Cadillac STS Submodels

  • 8 Cyl 4.6L | Base
See more

Eastern 50-state legal Catalytic Converter

Eastern ECO CARB Catalytic Converter

 30 years of innovation is proof enough that Eastern is the best manufacturer of the finest aftermarket and original equipment catalytic converters on the market. Their ECO Series Catalytic Converters which are designed to help keep the Check Engine Light (MIL) off is another set of catalytic converters with world class quality.

 The Eastern ECO CARB Catalytic Converter is the best option for any vehicle that needs to comply with the California Air Resources Board (CARB) regulations. The Eastern ECO CARB Catalytic Converter features washcoats with greater loadings of precious metals to handle applications with ultra low emissions, higher than normal emissions, as well as vehicles with higher mileage and heavier workloads.

Here's why Eastern ECO CARB Catalytic Converter is the best option:

  •   Passed the emissions requirement of the California Air Resources Board
  •   Engineered with Eastern's proprietary NANO technology yielding highly efficient loadings for lower cost and better converter efficiency
  •   Features an advanced materials design for maximum engine output and performance
  •   Comes with a 5-year or 50,000-mile warranty

Eastern ECO CARB Center Catalytic Converter - Manifold Converter, Direct Fit

$496.30 $585.63 You Save $89.33 (15%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: EAST630715
  • Location: Center
  • Series: Eastern ECO CARB
  • Type: Manifold Converter
  • Emissions: 50-State Legal
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • E O Number: D-665-17
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
See more

Fits the following 2006 Cadillac STS Submodels

  • 8 Cyl 4.6L | Base
See more

Eastern ECO CARB Center Catalytic Converter - Manifold Converter, Direct Fit

$496.30 $585.63 You Save $89.33 (15%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: EAST630717
  • Location: Center
  • Series: Eastern ECO CARB
  • Type: Manifold Converter
  • Emissions: 50-State Legal
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • E O Number: D-665-17
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
See more

Fits the following 2006 Cadillac STS Submodels

  • 8 Cyl 4.6L | Base
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 Front, Passenger Side Catalytic Converter - Traditional Converter, Direct Fit

Best Seller
$255.66 $645.50 You Save $389.84 (60%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: DAV19237
  • Location: Front, 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: 19.25 in. L x 7 in. W x 5 in. H
  • 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 2006 Cadillac STS Submodels

  • 6 Cyl 3.6L | Base
See more

Davico Standard Front, Driver Side Catalytic Converter - Traditional Converter, Direct Fit

Best Seller
$255.41 $645.50 You Save $390.09 (60%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: DAV19238
  • Location: Front, Driver 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: 18 in. L x 4 in. W x 10 in. H
  • 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 2006 Cadillac STS Submodels

  • 6 Cyl 3.6L | Base
See more

Davico Exact Fit Front, Driver Side Catalytic Converter - Manifold Converter, Direct Fit

$375.41 $442.98 You Save $67.57 (15%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Sku#: DAV19248
  • Location: Front, Driver Side
  • Series: Davico Exact Fit
  • Type: Manifold 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
See more

Fits the following 2006 Cadillac STS Submodels

  • 8 Cyl 4.6L | Base
See more

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