Ford Mustang Flowmaster 2.5" Mini-Catalytic Converters by Flowmaster

Mustang Flowmaster 2.5" Mini-Catalytic Converters


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Mustang Flowmaster 2.5" Mini-Catalytic Converters
  • Flowmaster Mustang 2.5" Mini-Catalytic Converters 2230125
  • Flowmaster Mustang 2.5" Mini-Catalytic Converters 2230125
  • Flowmaster Mustang 2.5" Mini-Catalytic Converters 2230125

Keep Emissions down & your Mustang's check engine light off with these Flowmaster 2.5" Mini-Catalytic Converters!

Item #FLO-2230125K

Everyday Low Price: $144.99

In Stock
Ships tomorrow!


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Benefits

  • Flows Better Than Stock
  • Lightweight
  • Passes Most State Emission Inspections
  • Engineered to keep the "MIL" light off

Features

  • Excellent flow characteristics
  • Stainless steel construction
  • Made in the USA
  • 10.5" Long
  • 4" Diameter

What's in the Box

  • (2) 2.5" Catalytic Converters

Made in the USA

Product Description

Flowmaster 2.5" Mini-Catalytic Converters
These Mustang mini cats are a universal design which means they can be used on all 1979 to present Mustangs that are using 2.5" exhaust piping. These 49-state legal Catalytic Converters are designed to meet Federal EPA emissions requirements on all Mustang. This set of Flowmaster 2.5" Mini-Catalytic Converters is manufactured right here in the USA, and features a stainless steel outer shell for maximum durability. The internal substrate material and precious metal loading have been carefully engineered for maximum efficiency. These Mustang catalytic converters have also been manufactured to avoid MIL (Check Engine Light) code issues that are common with lower quality catalytic converters. These universal high flow cats require welding and/or fabrication and should be installed by qualified technicians for the best, long-lasting results.

Emissions
Flowmaster 49-state converters are not legal for sale or use on vehicles licensed or operated in the state of California.

Application
- Fits 1979-Present Mustangs using 2.5" Exhaust Pipe

See what our customers have to say about this product!
Check out customer reviews.


Product Videos

Mustang High Flow Catalytic Converter

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!


Customer Photos (3)



Product Reviews (17)


4.6
out of 5 stars
4.5 stars
17 reviews
5 stars    12
4 stars    4
3 stars    1
2 stars    0
1 star    0

100%
OF CUSTOMERS
RECOMMEND THIS PRODUCT
15 of 15 REVIEWS
RECOMMEND THIS PRODUCT
15 of 15 REVIEWS


5 Stars   Great performing
By on 10/12/2013
Had a shorty off road H-pipe on my fox body, and was looking to get rid of the exhaust smell that seemed to engulf the car while driving. Had these welded in and they helped out big time without a big change in sound or performance.

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5 Stars   Great cats for a great price
By on 9/21/2013
Had these put onto my 3.8 and it made a huge difference in sound had all four cats cut off and these welded in. Did cause the o2 sensor code to come up so may want to go ahead and invest in mil eliminators if you get these but overall very pleased with the added sound and performance will drone some on highway in case highway drone bothers you

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4 Stars   great fit
By on 3/8/2014
I bought them last month and they fit great. Smoother exhaust note and well hidden. great price

Yes, I would recommend this item to a friend!


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5 Stars   Quick Service / Great Price
By on 8/1/2014
Purchased (2) catalytic converters at an amazing price and an even better delivery timeframe.

Yes, I would recommend this item to a friend!


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5 Stars   Great bang for your buck!
By on 3/4/2014
i bought these cats about a week ago to put on my 2007 GT because the previous owner was running no cats and it sounded terrible! but once i got these in (which was a day after i ordered them!) took them to get installed, it was a relatively easy install, the guy did have to make a hole for the oxygen sensors to sit because these DO NOT have a bung for the Ox. Sensor. other then that, these make the car sound GREAT! you get that straight pipe sound but legally!

Yes, I would recommend this item to a friend!


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5 Stars   Perfect for getting rid of exhaust smell
By on 3/5/2015
Image uploaded by Nick A. These are small, light, and work perfectly when you're trying to stop smelling like a tailpipe everywhere you go. I made a template of my BBK ORH on some card board, then cut the pipe. These are just over 10" long but they slip right over the BBK H pipe so you only need to cut out like 6-7 inches then weld them on. I did it in my garage in a few hours. It really helps with the smell, and the car runs just a little quieter and very smooth.

Yes, I would recommend this item to a friend!


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5 Stars   Ready for Summer
By on 6/2/2014
I ordered these on Saturday, received them on Thursday and had them installed on the following Saturday. Passed inspection that day as well. It makes the exhaust the less raspy with no performance lost. I have a bbk o/r h-pipe, Mac mufflers and custom stainless tails. Thanks to Latemodel Restoration my GT is back on the road.

Yes, I would recommend this item to a friend!


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5 Stars   works excelent!!
By on 6/12/2014
I used another brand of cats and the sound of the exhaust was like the car got a flu, and the smell of the smog was still there, but i bought this couple months ago and since i installed it the smog smell went away and the exhaust sound or performance wasnt affected on my 2005 supercharged mustang gt and the price is great!

Yes, I would recommend this item to a friend!


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4 Stars   Just what I needed
By on 3/25/2014
As stated above, just what I needed, made my car legal again, saved me from the fuel smell, and they are small so they can be tucked right into your exhaust set up without trying to find a place to fit them. Simple design, didn't change the sound much, and lighter than I expected. Thank you.

Yes, I would recommend this item to a friend!


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5 Stars   Flowmaster Cat Converters (pair)
By on 12/5/2014
I bought these as a pair in 1 kit. Wow, who knew it was that easy. The best way to describe this kit. Flawless! Buy the kit of 2 cats, install them, and forget about them. Simple as that!! LMR shipped them out fast.

Yes, I would recommend this item to a friend!


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5 Stars   Excellent price!
By on 10/17/2014
Got an estimate for generic cats at my local muffler shop for $150 each; got these cheaper for the pair and they do an amazing job, no more gas smell (my cars a convertible!) and it's quieter on idle!

Yes, I would recommend this item to a friend!


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5 Stars   Pass the Texas sniff!!!
By on 4/8/2015
Image uploaded by Matt B. I have bought these from late model, they are perfect. Never again will I play Orh pipe switcharoo. I paired this up with Sve Orh and welded in the cats. You can not notice a difference from from performance or sound. This is my first time to run cats and I love these. I went for the two speed idle test, my car is a 93. They passed with flying colors.

Yes, I would recommend this item to a friend!


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3 Stars   Smell Gone!
By on 4/23/2015
Bought my car (2000 GT w/Vortech supercharger) without Cats and with side pipes the exhaust smell blew right in the car. Was concerned that the supercharger would be too hot for them but after two days of hard driving they are working great. The smell is gone and there is no noticeable change in exhaust sound or power reduction. I'm happy

Yes, I would recommend this item to a friend!


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5 Stars   Cheap easy fix.
By on 1/30/2015
Image uploaded by Chad K. Needed to put cats back on for emissions but had a off road xpipe. Says had to weld but needed to get the project done fast for emissions soon so I used band clamps and ones on sounded fine worked great and passed Colorado emission just fine. For the price was awesome and shipped fast will weld in later but a quick fix worked.

Yes, I would recommend this item to a friend!


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4 Stars   Right choice
By on 9/29/2014
I bought a pair of Flowmasters 2.5" mini-cats and they made my car not only more driveable, but sound awesome. I am very happy with the fast service and quick ground delivers.

Yes, I would recommend this item to a friend!


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5 Stars   looks great! and work perfect.
By on 8/15/2014
I had to put cats back on my car (due to inspection) and these really caught my eye. Great look for a great price!

Yes, I would recommend this item to a friend!


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4 Stars   Good Product
By on 11/7/2014
Just what I needed. Hard to beat for the price

Yes, I would recommend this item to a friend!


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About This Brand


Flowmaster
Flowmaster - The Exhaust Technology Company
Flowmaster operates the only exhaust Research & Design facilities of its kind in the world, centered around the SuperFlow SF-7100 engine dynamometer complete with E.C.A. (engine cycle analysis) equipment and also SuperFlow chassis dyno's.

Through use of these dyno's, Flowmaster's engineering staff can track the complete engine cycle in millionths of a second and can obtain exact technical data of each degree of cam rotation, from induction to the tip of the exhaust system, while also showing the power numbers that really matter, the power numbers "to the ground."

Flowmaster also utilizes Spectrum Analyzers to fine "tune" the sound of each of the eleven different series of mufflers that Flowmaster currently offers, both for peak performance and just the right sound levels and tones. Flowmaster's dedication to quality is what makes them the exhaust industry leader for Latemodel Mustangs and SVT Lightnings!

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