
The Exhaust & Emissions Experts Shops Trust
Quality-tested catalytic converters and exhaust components built for reliable fit, performance, and compliance.


Direct-Fit Catalytic Converters
Restore emissions performance without custom fabrication or welding — our direct-fit catalytic converters are engineered as bolt-on replacements for a fast, straightforward install.
CARB & Federal Compliant Configurations
Direct-fit, vehicle-specific design
Lifetime Warranty


Manifold Converters
Collect exhaust gases efficiently — our manifold converters are engineered to route them through the catalytic converter, restoring proper exhaust flow and emissions control.
CARB & Federal Compliant Configurations
OE-Style Fit and Performance
Lifetime Warranty


Oxygen (O2) Sensors
Reduce check engine lights and improve fuel efficiency with accurate, reliable sensor performance — our oxygen sensors cover a wide range of domestic and import vehicles.
OE-Style Fit and Performance
Reduce Check Engine Lights
Improve Fuel Efficiency
Wide Vehicle Coverage

Get the exhaust parts you need, fast.
With local inventory, wide vehicle coverage, and a nationwide delivery network, 1-800-Radiator & A/C helps keep your bays turning.
Find your nearest location today and call for pricing and availability.


What Killed the CAT?
No moving parts means no normal wear and tear. A dead catalytic converter is almost always a symptom of something upstream, like a misfire, a leak, or a bad fuel mixture. Replace the part without fixing the cause, and you'll pay for it twice.
Fix the Cause, Not the Symptom
Protect Your Reputation. Nail the Root Cause.
