
AP Exhaust 644188 EPA Catalytic Converter
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Compared across 12 stores. Prices are checked against each store and labelled with when.

Compared across 12 stores. Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The AP Exhaust 644188 is a direct-fit, single-inlet/single-outlet catalytic converter with a ceramic honeycomb substrate and an EPA-compliant design for OBDII vehicles. It bolts on in place of the original unit, with a sensor port and included gasket and clamp, so no fabrication is needed. It is a stock-replacement part rather than a performance upgrade, and it is not legal for use in California or on vehicles that require CARB approval. Shoppers compare it with OEM converters and with universal weld-in units; this one trades the lowest cost of a universal fit for easier installation, but it carries the same federal emissions limits as other EPA converters.
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Availability unknownSold by restauco-parts (99.3% positive, 3,200 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
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Lowest price we've seen: $169.22 on Nov 9 at New Auto Parts. Tracked across 12 stores since Nov 9.
Owner feedback on AP Exhaust direct-fit converters is generally positive on fit and function when the part matches the vehicle, with installation reported as straightforward. Complaints center on fitment mismatches and on the part not being legal in California.
AP Exhaust 644188 Catalytic Converter. Federal / EPA Catalytic Converter - Direct Fit. ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency while our latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This in total allows AP Emissions Technologies to maintain industry-leading efficiency, productivity, and competitive pricing.






