AutoMom_2019_90
Installation was straightforward, and the parts fit like a glove. Plus, the shipping was incredibly fast, I got them in just two days. Couldn't ask for more.
2026-02-01
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2004-2007 Cadillac CTS 3.6L/2005-2007 CTS, Left Right Side, 2-PC Catalytic Converter, Fit Federal Emissions, PHILTOP 16544
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SKU: 75ISEXP3107US
$170.99
In Stock
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Select Year, Make, and Model before checkout.
Reviews
DIY_Karen_838
My CTS was sputtering and had that rotten egg smell, but this fixed it. The engine sounds healthier and I'm not worried about failing emissions anymore. Big relief!
2026-03-27
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45-Day Free Returns
3-Year Warranty
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Compatible Vehicles
Check if this fits your vehicle
| Year | Make | Model | Trim | Engine |
|---|---|---|---|---|
| 2005 - 2007 | Cadillac | CTS | Base | 2.8L V6 |
| 2004 - 2007 | Cadillac | CTS | Base | 3.6L V6 |
About This Product
Product Specifications
- Brand
- PHILTOP
- O2 Sensor Port
- 2 Sensor Ports
- Labels & Certifications
- EPA
- Position
- Left Right
- Fitment
- 2004-2007 Cadillac CTS 3.6L 2005-2007 Cadillac CTS 2.8L
- Notes
- Federal EPA Standard, 46-State Legal (Not applicable to vehicles purchased in CA, CO, NY or ME.)
Product Description
Reviews
4.5/5
Based on 4 reviews
5
75%
4
0%
3
25%
2
0%
1
0%
AutoMom_2019_90
Installation was straightforward, and the parts fit like a glove. Plus, the shipping was incredibly fast, I got them in just two days. Couldn't ask for more.
2026-02-01
DIY_Karen_838
My CTS was sputtering and had that rotten egg smell, but this fixed it. The engine sounds healthier and I'm not worried about failing emissions anymore. Big relief!
2026-03-27
FAQS
Fitment depends on your vehicle's specific engine and year. To be 100% sure, please enter your vehicle's Brand, Year, and Model into the "Fitment Checker" at the top of the page. If it shows a "Match," this part is engineered specifically for your vehicle.
Yes, this unit is fully EPA-compliant and meets federal emissions standards. You can verify the EPA certification stamps and specific engineering standards by looking through the "Technical Specs" section below.
Installation difficulty depends on your vehicle's exhaust layout. Most of our units are "Direct-Fit," but some may require more effort than others. Please check the "Installation Guide" or product photos on this page to see the specific bolt patterns and connection points for this model.