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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
For Your Every Summer RSVP, with Code: SUMMER15
Description
06-09 Cadillac STS 4.4L P/S Direct-Fit Catalytic Converter 51131 MagnaflowKeep the check engine light off with MagnaFlow OEM Grade Federal EPA Compliant Direct Fit Manifold Catalytic Converter 51131. With features including free flowing mandrel bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state of the art metrology department uses the latest 3D scanning systems during research and
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 51131. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Manifold Catalytic Converter is designed to fit the 2006-2009 Cadillac STS 4.4L. MagnaFlow 51131 includes (8) Bolts, (1) Donut Gasket. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 4
Good quality shirt
Size: XX-Large, Color: P1728-black
Attractive garment, consider ordering a size down as it runs large.
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Reviewed in the United States on August 14, 2025
★★★★★ 5
Great buy
Color: Blue Slant Check, Size: Medium
Very nice material. Washes well and even travels in a suitcase without wrinkling. Color is as described and fits well. Great buy for the price.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Soft and vibrant
Color: Blue/Yellow, Size: Medium
The material feels great and the colors are great. The fit is true to size . Nice addition to my son’s golf shirt selection.
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Reviewed in the United States on March 22, 2026
★★★★★ 4
Thick quality polo shirt, just maybe not for Golfing.
Color: Black/Blue, Size: Medium, Color: Black/Blue, Size: Medium
This shirt was a lot thicker than I imagined. It's built well and fits as intended, but as far as a golf shirt it is quite heavy, and I would feel as though it would cause overheating or sweating. Very thick shirt, possible better for colder golfing days and still look good. I enjoy the color and pattern. It is soft and comfortable, again just a little thinker than anticipated, not a quick dry material, but a fully cotton blend. Decent value for the money and would consider pitching others in the future but most likely not for golfing in general.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Good shirts
Color: Black Diamond & Dots, Size: Large
Nice shirt. Pattern true to pictures. True to size unless you're 6'2 and you want to leave the shirt untucked, it's a bit short.
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Reviewed in the United States on April 14, 2026