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Deal.ai › Flowmaster › Exhaust Systems
Flowmaster
Flowmaster 2230125 Universal Catalytic Converter

Flowmaster 2230125 Universal Catalytic Converter

4.6(35 ratings)

Best price now

$94.95at Lethal PerformanceObserved at 12:00 PM

Compared across 15 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $94.95 at Lethal Performance (checked Nov 9, 2026).
  • Checked at 15 stores.

Our take on the Flowmaster 2230125 Universal Catalytic Converter

The Flowmaster 2230125 is a universal-fit, weld-on catalytic converter with 2.5-inch inlet and outlet, a stainless steel shell, and a ceramic three-way catalyst. It is designed to meet federal EPA emissions requirements for vehicles up to 6,000 lb GVW and engines up to 5.9L. Reviewers praise its durable construction and efficient catalyst that helps avoid check-engine lights. It is not legal for sale or use in California and requires welding or fabrication for installation.

Best forDrivers needing a federal-compliant replacement converterDIY installers with welding and fabrication skillsVehicles with 2.5-inch exhaust pipingOlder cars or trucks with failed converters
Pros
  • Stainless steel shell resists corrosion
  • Ceramic substrate and precious metal loading engineered for efficiency
  • Helps prevent MIL code issues common with cheaper converters
  • Universal design fits many vehicles with 2.5-inch exhaust
Cons
  • Requires welding and fabrication for installation
  • Not legal for sale or use in California
  • No sensor ports; may need additional work for O2 sensors
  • Limited to engines up to 5.9L and 6,000 lb GVW

Flowmaster 2230125 Universal Catalytic Converter prices at every store

  • Lethal PerformanceNew

    In stock

    $94.95Observed at 12:00 PM
    Visit Lethal Performance
  • FlowmasterNew

    In stock

    $94.95Observed at 12:00 PM
    Visit Flowmaster
  • AmericanMuscle.comNew

    In stock

    $94.95Observed at 12:00 PM
    Visit AmericanMuscle.com
  • eBayNew

    In stockSold by linesdirect

    $94.95Observed at 12:00 PM
    Visit eBay
  • AmericanTrucks.comNew

    In stock

    $94.95Observed at 12:00 PM
    Visit AmericanTrucks.com
  • ExtremeTerrain.comNew

    In stock

    $94.95Observed at 12:00 PM
    Visit ExtremeTerrain.com
  • JEGS High PerformanceNew

    In stock

    $94.95Observed at 12:00 PM
    Visit JEGS High Performance
  • ID Speed ShopNew

    In stock

    $106.99Observed at 12:00 PM
    Visit ID Speed Shop
  • TWISTNew

    In stock

    $101.12+ $12.50 shippingObserved at 12:00 PM
    Visit TWIST
  • The Twister GroupNew

    In stock

    $101.12+ $12.50 shippingObserved at 12:00 PM
    Visit The Twister Group
  • SK Speed Racing EquipmentNew

    In stock

    $119.95Observed at 12:00 PM
    Visit SK Speed Racing Equipment
  • Advance Auto PartsNew

    In stock

    $192.99Free shippingObserved at 12:00 PM
    Visit Advance Auto Parts
  • AutoZoneNew

    In stock

    $192.99Observed at 12:00 PM
    Visit AutoZone
  • Advance Auto PartsNew

    In stock

    $192.99Observed at 12:00 PM
    Visit Advance Auto Parts
  • WalmartNew

    Out of stock

    $102.27Free shippingVerified
    Visit Walmart

Also available at

  • eBayCheck price at eBay
  • WalmartCheck price at Walmart

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

Flowmaster 2230125 Universal Catalytic Converter price history

Lowest price we've seen: $94.95 on Nov 9 at Lethal Performance. Tracked across 15 stores since Nov 9.

What reviewers say

  • 4.6 / 535 ratings

Reviewers give it a 4.6 out of 5, praising its sturdy build and effective emissions performance. Some mention the need for welding and fabrication as a drawback.

What people mention
  • Build qualityPraisedOwners say the stainless steel shell feels solid and holds up well over time.
  • Emissions performancePraisedReviewers report that it effectively reduces emissions and keeps the check-engine light off.
  • InstallationMixedSome find the weld-on installation straightforward, while others note it requires fabrication and professional help.
  • Sensor compatibilityCriticisedA few mention that the lack of sensor ports means extra work to accommodate oxygen sensors.

About the Flowmaster 2230125 Universal Catalytic Converter

Catalytic Converter - Universal - 223 Series - 2.50 in. Inlet/Outlet - Federal; Flowmaster Federal universal catalytic converters are designed to meet federal EPA emissions requirements on a wide variety of applications. These high quality catalytic converters feature stainless steel outer shell construction for maximum durability. The internal substrate material and precious metal loading have been carefully engineered for maximum efficiency and to avoid MIL (Malfunction Indicator Lamp) code issues that are common with lower quality converters. Universal catalytic converters require welding and/or fabrication and should be installed by qualified technicians. Please refer to the Flowmaster application guide for specific part number/vehicle applications. Flowmaster Federal converters are not legal for sale or use on vehicles licensed or operated in the state of California.;

Specifications

Material Type
Stainless Steel
Vehicle Type
Universal, Gross vehicle weight: 6000 LB
Component Type
Catalytic converter
Inlet Diameter
2.50 in
Length
18 in
Outlet Diameter
2.50 in
Body Diameter
4.00 IN

Questions and answers

Is this catalytic converter legal in California?
No. It is not legal for sale or use on vehicles licensed or operated in California. It meets federal EPA requirements only.
What vehicles does this fit?
It is a universal fit for vehicles with 2.5-inch exhaust piping, up to 6,000 lb GVW and engines up to 5.9L. Check Flowmaster's application guide for specific fitment.
Does it come with sensor ports?
No, it has no sensor ports. You may need to weld in a bung for oxygen sensors if your vehicle requires them.
How is it installed?
It is a weld-on design, so installation requires welding and fabrication. Flowmaster recommends a qualified technician.
Will it trigger a check-engine light?
The catalyst is engineered to avoid MIL code issues common with lower-quality converters, but proper installation and vehicle compatibility are essential.
What is the warranty?
Flowmaster typically offers a limited warranty on catalytic converters; check the manufacturer's documentation for details.
Where is the Flowmaster 2230125 Universal Catalytic Converter cheapest?
At Lethal Performance, for $94.95, as of our latest check.
What do buyers say about the Flowmaster 2230125 Universal Catalytic Converter?
Rated 4.6 out of 5 from 35 ratings.
Where can I buy the Flowmaster 2230125 Universal Catalytic Converter?
14 stores we checked sell it, including Walmart, TWIST, The Twister Group, Advance Auto Parts, Lethal Performance.

Stores we've priced the Flowmaster 2230125 Universal Catalytic Converter at

  • Walmart deals and prices
Body Length
10.50 IN
Weight
2.2 lb
Sensor Ports
No
Catalyst Type
3-Way
Substrate Material
Ceramic
Mounting Type
Weld-on
Flange Type
Non-Flanged
Finish
Natural
Inlet Type
Single
Mount Type
Weld-On
Outlet Type
Single
Shape
Round
Design Highlights
Catalytic Converter
Engine Type
5.9L (max)
Material
Stainless SteelSource
color
OtherSource