SKU: 35053729267

2003 Buick Rendezvous 3.4L Direct-Fit Catalytic Converter 4451208 Magnaflow

Sale price$521.55 Regular price$579.50
Save 10%

Pay in installments of $144.88 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 21 - Jul 26

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

2003 Buick Rendezvous 3.4L Direct-Fit Catalytic Converter 4451208 MagnaflowOverview: Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct Fit Catalytic Converter 4451208. 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

Overview:

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4451208. 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 to fit the 2003 Chevrolet Venture, 2003 Buick Rendezvous, and additional vehicles. 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 California Air Resource Board requirements, and has undergone additional testing to be certified by CARB for legal use in CA/CARB restricted states for the listed vehicles.

Interchange:
Brand  Interchange Part Number

Application:

Year Make Model Submodel Engine Size
2003 Buick Rendezvous 3.4L/V6
2003 Chevrolet Venture 3.4L/V6
2003 Oldsmobile Silhouette 3.4L/V6
2003 Pontiac Aztek 3.4L/V6
2003 Pontiac Montana 3.4L/V6

Specs:

Material Stainless Steel
Gasket Included Yes
Main Piping Diameter 2.25
Substrate Ceramic
Body Height (In.) 5
Oxygen Sensor Location Post Converter
Hangers Included Yes
Finish Stainless Steel
Inlet Attachment Bolt-On
Converter Quantity 1
Clamp Included Yes
Body Width (In.) 5
Body Type Spun
Body Shape Round
Body Length (In.) 11.125
Sensor Port Count 1
Series California
Air Tube Adaptable No
Subtitle California / CARB Compliant
Inlet Diameter 2.25
Overall Length (In.) 57.5
Title California Direct-Fit
Outlet Quantity 1
Type Direct-Fit
Mounting Hardware Included Yes
Inlet Quantity 1
Heat Shield Attached No
Outlet Attachment Bolt-On
Outlet Diameter 2.25
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: 35053729267

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 9 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
Douglas hartman
Carnegie, US
★★★★★ 5
Brighter then I expected
Color: 52Inch Lights +LED Pods+ Wiring Harness
Should have went with a curved but fit under front bumper of f150 and is brighter then I ever imagined
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
S
Verified Purchase
Stephen Wathne
Battle Creek, US
★★★★★ 5
Brighten up the dark wild
Color: 52Inch Lights +LED Pods+ Wiring Harness
My jeep came with a worn out set of these. In the big picture they were an easy replacement and allowed me to clean up the wiring mess in the jeep. The downside is they are terribly noisy driving down the road. They make great light in the dark wilderness. As soon as I'm ready for some paint correction they will be coming off.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
A
Verified Purchase
Austin Ferguson
Lake Worth, US
★★★★★ 5
Super Bright and Easy to Install!
Color: 52Inch Lights +LED Pods+ Wiring Harness
The Nilight ZH023 LED Light Bar Combo is outstanding! The 52-inch bar plus the two 4-inch fog lights put out an incredible amount of light—perfect for off-road driving at night. The spot and flood combo gives great distance and wide coverage, and the wiring harness made installation simple. Everything feels durable, weatherproof, and built to last. For the price and performance, this is one of the best lighting upgrades you can get for your vehicle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 4, 2025
B
Verified Purchase
baca
Massapequa, US
★★★★★ 4
very bright
Color: 52Inch Lights +LED Pods+ Wiring Harness
It fit my 2015 f150, but I had to extend the power cable because my battery is on the passenger side, not the driver's. I also wish it came with instructions in the box rather than on the Amazon listing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
M
Verified Purchase
Michael Jennings
Chelsea, US
★★★★★ 5
Light bars
Color: 52Inch Lights +LED Pods+ Wiring Harness
Quality product, quick delivery
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026

recommand products