Front Exhaust Manifold Catalytic Converter for 2004-2006 Nissan Altima - Walker 83397

Walker Exhaust 83397 front exhaust manifold catalytic converter for the 2004-2006 Nissan Altima 4-cylinder 2.5L combines the manifold and converter in one bolt-on piece. Also listed as an exhaust manifold with integrated catalytic converter, it treats exhaust gas as it leaves the cylinder head.

• Walker CalCat CARB-certified; legal for sale in California, Colorado, New York and other states that require CARB-compliant converters
• Integrated manifold bolts directly to the engine cylinder head and matches all downstream connections
• Optimal high-technology washcoat formulated for performance
• Precise coating process puts the catalyst material onto the substrate for consistent performance
• Stainless-steel body, aluminized pipe and heat shields, with thick flanges, hangers and brackets

Quick facts

• Part: Walker Exhaust 83397 exhaust manifold catalytic converter
• Also called: exhaust manifold with integrated catalytic converter
• Fits: 2004-2006 Nissan Altima 4-cylinder 2.5L
• Position: Front
• Material: Stainless Steel
• Condition: New

A rattle from the exhaust, a failed emissions test or a check engine light can be signs of a failing converter, and a loose heat shield or an exhaust leak may produce some of them too. With the engine off and cool, look over the flanges and heat shields for cracks, soot streaks or loose pieces, and find the cause before replacing the converter.

Fits

This is a direct-fit replacement for the 2004-2006 Nissan Altima with the L4-2.5L engine, and each car takes one.

Specifications