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Best Automotive Replacement Catalytic Converter Air Tubes

Spectre Performance 9799 4" 90 Degree Mandrel Intake Tube
Spectre tubes allow you to design your very own custom cold air intake system. Enter your model number to make sure this fits.
Reviews
"I needed a 90* 4" intake piece for the LSA install my SS sedan."
"Freedom to piece together your own 4" intake system for LS swappers, or otherwise, is awesome."
"Not sure why an aluminum elbow costs so much."
"Good quality, but not cheap."
"This product is too thin which permits the product to dent and bend, would not recommend."
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Walker 35574 Air Tube Kit
Walker delivers optimal OE-style fit, appearance, and dependability in aftermarket emissions control parts. Universal fit for installation flexibility.
Reviews
"So far so good."
"Fit fine, just what the F150 needed."
"I've used this adapter kit before."
"Walker exhaust products always excellent quality."
"Fits perfect and helped make the job easy."
"I had a bad exhaust blow by, tracked it down to a split air pipe."
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APDTY 104043 EGR Tube 2001-2002 Ford Expedition/ 2001 Ford F-150 ( 1L3Z9D477BA )
Brand New Exhaust Gas Recirculation (EGR) Tube. Enter your model number to make sure this fits.
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Best Automotive Replacement Catalytic Converter Kits

Dorman 674-105 Exhaust Manifold with Integrated Catalytic Converter (Non CARB Compliant)
More like a kit than a single part, many of Dorman's Exhaust Manifolds include gaskets and downpipe hardware for easier installation. A rigorous quality inspection has been undertaken to ensure product standards.
Reviews
"EXACT FIT."
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Best Automotive Replacement Catalytic Converters

MagnaFlow 93419 Direct Fit Catalytic Converter (Non CARB compliant)
MagnaFlow direct-fit catalytic converters are designed for easy bolt-on installation for the professional installer. Designed for easy bolt-on installation;Reduces harmful emissions.
Reviews
"Don't try any other way to remove the old or install the new."
"I didn't notice a huge performance improvement, but acceleration is better at low end and my average MPG has increased by 2 miles per gallon."
"great value, comes with the gaskets and clamps."
"These mounted up really easy."
"Easy to install and fits good under 04 Silverado."
"Works great."
"It was a piece of cake installing these!"
"Mainly removing the longer section required dropping the cross brace and pulling down on it to slide pipe out."
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Best Automotive Replacement Catalytic Converter Parts

Stoptech 950.61501 Auto Part
Stoptech 950.61501. Enter your model number to make sure this fits.
Reviews
"The assembly feels well built."
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