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Vip Only Magnaflow 2004 Buick Rainier 5.3l Direct Fit Converter (4451172) Mega Pack [TK0XeIcy]

$114.99 $367.99 -69%

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4451172. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eli

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Vip Only Magnaflow 2004 Buick Rainier 5.3l Direct Fit Converter (4451172) Mega Pack [TK0XeIcy]

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4451172. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. This direct-fit catalytic converter is designed to fit the 2004 Buick Rainier 2004 Chevrolet Trailblazer EXT and additional vehicles. This replacement part is designed to meet or exceed California Air Resource Board requirements and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states for the listed vehicles.

Features

  • Torca AccuSeal® Exhaust Clamps provide a full 360-degree equally distributed clamping force preventing pipe distortion while creating a complete seal and maintaining serviceability
  • Your trusted source for CARB-compliant catalytic converters providing assurance of genuine compliance while delivering quality that will last
  • Mandrel bent tubing retains OEM-like design and geometry ensuring smooth exhaust flow for peak fuel economy and engine operation
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics maintaining factory performance and fuel efficiency
  • Precision stamped collector design for optimal exhaust flow engine efficiency and fuel economy
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds

What Our Customers Say

February 1, 2026

Absolutely no complaints!

A very solid and a highly reliable performer.

- Iola M..

February 1, 2026

Absolutely no complaints!

The quality here is utterly phenomenal.

- Wilfred T..

February 1, 2026

Absolutely no complaints!

A fantastic purchase from a truly great brand.

- Zelah N..

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