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Deal.ai › AP Exhaust › Catalytic Converters
AP Exhaust
AP Exhaust 644188 EPA Catalytic Converter

AP Exhaust 644188 EPA Catalytic Converter

Best price now

$169.22at New Auto PartsChecked 14 h ago

Compared across 12 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Last seen at $169.22 at New Auto Parts on Nov 9.
  • Checked at 12 stores.

Our take on the AP Exhaust 644188 EPA Catalytic Converter

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.

Best forOwners replacing a failed converter on an OBDII vehicleDrivers in states that follow federal, not California, emissions rulesDIY installers who want a bolt-on fit with a gasket and clampDaily drivers keeping a stock exhaust system
Pros
  • Direct fit for the listed applications, no welding or fabrication
  • Ceramic honeycomb substrate with efficient catalyst loading
  • Includes gasket and clamp for installation
  • Sensor port present for the oxygen sensor
  • Stainless steel construction resists corrosion
Cons
  • EPA only, not legal in California or CARB states
  • Not a performance converter; flow matches stock
  • Fitment is vehicle-specific, so the wrong listing means returns
  • Universal converters can be cheaper for custom exhaust work

AP Exhaust 644188 EPA Catalytic Converter prices at every store

  • New Auto PartsNew

    In stock

    $169.22Checked 14 h ago
    Visit New Auto Parts
  • Partsgeek.comNew

    In stock

    $169.29Checked 14 h ago
    Visit Partsgeek.com
  • AutoplicityNew

    In stock

    $173.28Checked 14 h ago
    Visit Autoplicity
  • CARiD.comNew

    In stock

    $193.33Checked 14 h ago
    Visit CARiD.com
  • CarParts.comNew

    In stock

    $194.99Checked 14 h ago
    Visit CarParts.com
  • Summit RacingNew

    In stock

    $197.99Checked 14 h ago
    Visit Summit Racing
  • FR SportNew

    In stock

    $201.65Checked 14 h ago
    Visit FR Sport
  • NAPANew

    In stock

    $564.99Checked 14 h ago
    Visit NAPA
  • AutoZoneNew

    In stock

    $927.99Checked 14 h ago
    Visit AutoZone
  • eBayNew

    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.

    $194.24+ $24.82 shippingChecked 14 h ago
    Visit eBay
  • WalmartNew

    Out of stock

    $197.16Checked 14 h ago
    Visit Walmart
  • JEGS High PerformanceNew

    Out of stock

    $197.99Checked 14 h ago
    Visit JEGS High Performance

Also available at

  • eBayCheck price at eBay

Store links may earn us a commission. Some prices via Klarna.

AP Exhaust 644188 EPA Catalytic Converter price history

Lowest price we've seen: $169.22 on Nov 9 at New Auto Parts. Tracked across 12 stores since Nov 9.

What reviewers say

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.

What people mention
  • FitmentMixedOwners say it fits well when the application is correct, but some report mismatches with their vehicle.
  • InstallationPraisedBuyers describe a bolt-on install with the included gasket and clamp.
  • Emissions complianceCriticisedCalifornia and CARB-state shoppers find it is not legal for their vehicles.
  • Check-engine lightPraisedSeveral owners report the P0420 code clearing after replacement.
  • DurabilityMixedLong-term reports vary, with some units failing sooner than expected.

About the AP Exhaust 644188 EPA Catalytic Converter

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.

Specifications

Material Type
Stainless steel
Length
19.00" (box length)
Outlet Diameter
2.00 in.
Component Type
Catalytic Converter
Standards Compliance
EPA Approved
Sensor Ports
Yes
Catalyst Type
Ceramic

Questions and answers

Is this converter legal in California?
No. It is EPA approved for federal emissions, not CARB approved, so it cannot be sold or installed in California or in states that require CARB-compliant converters.
Does it fit my vehicle?
Fitment is specific to the vehicle and engine. Check the application list for your year, make, model and engine before ordering, since the same body style can use different converters.
Is it a direct bolt-on?
Yes. It is a direct-fit single-inlet, single-outlet unit with a sensor port, and it comes with a gasket and clamp, so no welding is needed.
Will it clear my check-engine light?
It should if the converter was the cause of the efficiency code. If the light returns, have the oxygen sensors and other codes checked before replacing the converter again.
How is it different from a universal converter?
A universal unit is cheaper but needs welding or adapters. This one is built to stock dimensions for a bolt-on fit, which saves labor on a stock exhaust.
What is in the box?
The converter, a gasket and a clamp. Reuse the original fasteners if they are in good condition.
Where is the AP Exhaust 644188 EPA Catalytic Converter cheapest?
At New Auto Parts, for $169.22, as of our latest check.
Where can I buy the AP Exhaust 644188 EPA Catalytic Converter?
12 stores we checked sell it, including Walmart, eBay, New Auto Parts, Partsgeek.com, Autoplicity.

Stores we've priced the AP Exhaust 644188 EPA Catalytic Converter at

  • Walmart deals and prices

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Substrate Material
Ceramic Honeycomb
Inlet Type
Single
Outlet Type
Single
Design Highlights
Catalytic Converter
Mounting Type
Direct Fit
Clamp Type
1
Gasket Material
Gasket
Compatibility Notes
Specifically engineered for OBDII equipped vehicles