MY GARAGE
Select Vehicle
GMC Sierra 2500 HD Classic Catalytic Converters
Catalytic converters for the 2007 GMC Sierra 2500 HD Classic range from direct-fit OE replacements to universal units, covering manifold and inline positions. Select your year above and we'll show only the catalytic converters that fit your GMC Sierra 2500 HD Classic. Fitment is checked against our vehicle data for every part listed.
1 - 17 of 17 results
Best Seller
Free Shipping
In Stock (10+)
Best Seller
Free Shipping
In Stock (10+)
Best Seller
Free Shipping
In Stock (10+)
Free Shipping
In Stock (10+)
Free Shipping
In Stock (10+)
Free Shipping
In Stock (10+)
Free Shipping
In Stock (10+)
Free Shipping
In Stock (10+)
Free Shipping
Magnaflow 457105 Universal Catalytic Converter 2.25 Inch Inlet/Outlet
Part: 457105
Vehicle Specific
$333.00
1 left at this price
Free Shipping
In Stock (10+)
Free Shipping
Magnaflow 51309 Universal Catalytic Converter 3.00 Inch Inlet/Outlet
Part: 51309
Vehicle Specific
$202.00
In Stock (10+)
Free Shipping
Magnaflow 337304 Universal Catalytic Converter 2.00 Inch Inlet/Outlet
Part: 337304
Vehicle Specific
$290.00
3 left at this price
Free Shipping
In Stock (10+)
Free Shipping
In Stock (10+)
Free Shipping
Magnaflow 448306 Universal Catalytic Converter 2.5 Inch Inlet Outlet
Part: 448306
Vehicle Specific
$718.00
In Stock (10+)
Free Shipping
MagnaFlow 5561482 California Grade CARB Compliant Direct-Fit Catalytic Converter
Part: 5561482
Vehicle Specific
$943.04
Ships from manufacturer
Free Shipping
Magnaflow 5451834 California CARB Direct-Fit Catalytic Converter
Part: 5451834
Vehicle Specific
$1,813.00
Ships from manufacturer
What's here for your GMC Sierra 2500 HD Classic
- Direct-fit catalytic converters designed to match OE specifications
- Universal catalytic converters for flexible installation
- OE replacement units for straightforward swaps
- Manifold-style catalytic converters
The widest selection here comes from AP Exhaust, Magnaflow, Bosal, and Walker Exhaust. Other categories GMC Sierra 2500 HD Classic owners shop for: GMC Sierra 2500 HD Classic Exhaust and Tail Pipes, GMC Sierra 2500 HD Classic Shocks and Struts and GMC Sierra 2500 HD Classic Exterior Lights, or browse all GMC Sierra 2500 HD Classic parts and accessories.