2009-15 Cadillac CTS OEM Grade Federal Catalytic Converter 21-178 Magnaflow
SKU: 6704972671

2009-15 Cadillac CTS OEM Grade Federal Catalytic Converter 21-178 Magnaflow

Sale price$330.75 Regular price$367.50
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  • USA
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

2009-15 Cadillac CTS OEM Grade Federal Catalytic Converter 21-178 MagnaflowCatalytic Converter OEM Grade Direct Fit Catalytic Converter Keep the check engine light off with MagnaFlow OEM Grade Federal EPA Compliant Direct Fit Catalytic Converter 21 178. With features including free flowing mandrel bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state of the art metrology department

Catalytic Converter

OEM Grade Direct-Fit Catalytic Converter

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-178. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body 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 spun body 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 catalytic converter is designed specifically for the 2009-2015 Cadillac CTS and interchanges with OE part 22940825. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. 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.

Specs:

Air Tube Adaptable : NO
Air Tube Count : 0
Body Height : 4 IN
Body Length : 12 IN
Body Material : Stainless Steel
Body Shape : Round
Body Type : Spun
Body Width : 4 IN
Clamps Included : NO
Finish : Stainless Steel
Grade Type : Regular
Hangers Included : NO
Heat Shield Attached : NO
Inlet Gasket Included : Yes
Inlet Inside Diameter : 2.5 IN
Inlet Mounting Hardware Included : NO
Inlet Quantity : 1
Inlet Type : BOLT-ON
Outlet Gasket Included : Yes
Outlet Inside Diameter : 2.5 IN
Outlet Mounting Hardware Included : Yes
Outlet Quantity : 1
Outlet Type : BOLT-ON
Overall Length : 18.75 IN
Sensor Port Count : 2
Series : OEM Grade
Substrate Material : Ceramic
Title : MagnaFlow 2009-2015 Cadillac CTS OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
Tube Material : Stainless Steel

Application:

  • 2009 - 2015 Cadillac CTS
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 6704972671

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4.4 ★★★★★
Based on 462 reviews
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Irvin T.
Port Orchard, US
★★★★★ 3
Color is awesome but material isn’t.
Size: 34W x 32L, Color: Blue, Size: 34W x 32L, Color: Blue
The color is pretty much as advertised. I wear a 33 so I order up a size and they were both too long and too big. Instead of returning them I washed them and put them in the dryer. The length after washing turned out perfect but the waist is still a little too big. It should also be noted that the quality of the material isn’t the best. After washing them this is how the pockets will look. You have to iron them each time to get them flat again. I would buy again because of the variety of colors but only at a cheaper price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 15, 2025
M
Verified Purchase
Mike
Alexandria, US
★★★★★ 5
Runs small
Size: 36, Color: Khaki
The jeans are a nice color, and length… they run SMALL… I wear a 33-34 and bought a 36. They were skin tight but breathable material… I sent them back to order a 38
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
T
Verified Purchase
Tenacious
Houston, US
★★★★★ 5
I’m happy with the jeans
Size: 40, Color: Pink
I am very satisfied with this purchase. A lot of compliments too. They fit well, stretch to the material but the skinny fit look. The quality so far is great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
E
Verified Purchase
eddie r.
Louisville, US
★★★★★ 5
Comfortable Jeans
Size: 38, Color: Khaki
Excellent pair of jeans. Super comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
D
Verified Purchase
Denise
Lake Worth, US
★★★★★ 4
MOM-1, PANTS-1...well, I guess we both win
Size: 32, Color: Black
Purchased for my 17 yr old son, about 6'2, 180, medium built. PROS -Black pair is a nice happy medium between faded black and pitch dark. -Roomy around the waist, but not enough for children to sag (no, no, no,) -excellent price for quality of product CONS -might be too comfortable for wearer, resulting in an request for an abnormal amount of additional pairs -consistent compliments for wearer could cause inflated ego or confidence OVERALL I didn't hear any complaints from my son or "can you return this" which is a WIN for me, bc he's usually very picky. it's a whole thing with the length and the thickness, color, all of it. I thought these pants looked really nice, the color was casual enough for friends, and dressy enough for church. I was pleasantly surprised. Not a big fan of belts, but he is not comfortable with sagging (thank goodness), and the fit around the waist provided enough support to stay where they needed to. Pants also did not scrunch up at the bottom, and did not fit like capris. Product title described product to a T (or pants): slim fit stretch comfort casual classic solid- it was all of those in one!
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Reviewed in the United States on December 2, 2025

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