Reviews

Which Mini Catalizador is best?Let our customers tell you.

We get it: buying anything online is risky business.You never know what you're going to get until it arrives, and then your fingers are crossed that it all works out. Choosing the right product can be a time-consuming and challenging process. Whether you're spending $10 or $20, real reviews from real customers can help streamline the process for you. Let our customers do the research for you and show you what to expect from Minicatalizador.com.

When you see what thousands of satisfied customers have to say, feel confident in purchasing the official Mini Catalizador®!

🚨Unlike cheap zinc-plated carbon steel products, our T-304 Premium Stainless Steel won't rust, fail, or damage your car at high temperatures. Don’t risk purchasing inferior imitations—choose the official certified product you can trust!

Trustpilot: Rated Excellent By Our Customers.Click to View

Sitejabber: Click to View

Had a P0420 code on my 350Z (VQ35HR) after installing HFCs. I installed the 90 degree mini catalizador. Cleared the code with an OBDII scanner. After ECU tested the catalytic converters, the code remained gone and car ready to pass the state smog test. Mini catalizador did what it was supposed to do.

– Steve D.

They are pure genius! My check engine light went off immediately! A mechanic friend of mine told me about them after he said they never failed him. They replaced having to get a new, pricey catalytic converter. Highly recommend!

– John Ochlan

Installation took about 15 minutes. Product was of great quality and exactly as advertised. It did exactly what I was hoping it would do. Best 70.00 I've spent in a long time.

– Kyle Rochelle

Within 24 hours of installation, my 2011 Camaro SS check engine light was adjusted by the ECM and disappeared from the dash. No issues for the past 72 hours. It appears to work as advertised.

– James Young

I admit I was skeptical, but I was so wrong! This adapter is the real deal. I’d been driving with a check engine light that had a mind of its own. After using this, it feels like my car finally got its act together. Smooth rides with no more worries about sudden breakdowns, and I’ve even noticed a slight boost in fuel efficiency. Count me impressed!

– R.G.

I don’t typically leave reviews, but this spacer truly deserves praise. My car was a wreck—check engine light always on and performance inconsistent. After installing this spacer, it feels like a brand-new ride! Smooth acceleration and no more annoying lights—it's a dream come true. If you’re facing car troubles, invest in this spacer; you won’t regret it!

– kelvin

I encountered a P0420 code after installing some faulty spark plugs that caused misfires. I decided to try this product, but it's essential to ensure everything else in your vehicle is functioning well first. For my setup, the straight design was ideal for the catalytic converter near the firewall, while a 90° would be necessary for front installation due to space. The installation was challenging, but it resolved my issue. Highly recommend!

– Samson Reed

Let customers speak for us

from 571 reviews

It actually works!

I have a 06 Matrix after using spray valve cleaner I got a P0420 code. I changed both sensors and used multiple bottles of cat cleaner. Spent hundreds of dollars with the light never going off. The car ran fine 30 MPG no soot. I installed this product 2 weeks ago and cleared the light. It has never come back on and no pre code when I check it. I wish I tried this first!

David Cappadona

01/25/2025

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

Saved me money and time!

This part saved me so much! The upstream O2 was not working properly but I did not have the tools or money to get it replaced. I was able to use this on the down stream O2 sensor, that's easy to reach, and get my car smog checked and pass! Thank you so much to all those involved making this part and saving my low-income self from losing lots of money!

Gabby

01/11/2025

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (90 Degree)

Mini magic

Love the product plan to buy it again and again and again and again

Arthur Hamamdjian

01/03/2025

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

Excellent Products!

I am so impressed with your products--nothing has worked to rid my car of the dreaded CEL light until now. I ordered the mini-cat 45-degree sensor spacer, and the 90-degree. Product is wonderfully well-built, and totally adjustable for fit. I found the 45-degree cat spacer fit best for my extremely tight space (2016 Cadillac ATS). Love how it fits, and how it works--no more CEL light!! Thank you for your fine products--you are an amazingly good company in a sometimes-shifty industry. I am very grateful for you!!

Joseph Leak

10/28/2024

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

Success

John Ochlan

10/27/2024

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

I don’t have any problems. I received my delivery and everything is fine.

Jesus Hernandez

09/19/2024

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

Perfect. Fix

Was getting a check engine light for a O2 sensor issue. Installed this item, cleared the check engine light and so far it has t come back on.

Chris Martin

09/10/2024

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

Fast delivery thanks!

Joseph Gallo

08/31/2024

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

Impossible made possible

I was working on a 2004 Honda. Accord that wouldn't pass smog. the car came to
me in poor running condition. It had no power. To take off from a intersection you needed a head start. I discovered that the converter was plugged almost solid. I decided to cut a small hole to see if it ran better and it did. I gutted the cat and put it back together and it ran great. Now my thoughts were to buy a universal cat and be done with it. Well that did not go as planned because the state I live in banned universal cats for import cars and you had to get it from the dealership and the dealer wanted almost $2000 I was searching the net and ran across the Mini cat. I did not think it would work. But what the heck it's worth a shot so I ordered it. The cat was just a shell after I gutted it. I put it on and decided to try smogging the car. Well to my surprize the car passed smog Thanks to the Mini Cat....

michael lyman

08/14/2024

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

Excellent product

I will recommend it 💯 %. I bought this for my Chevy Cruise 2014
After I dis change the Catalytic Converter twice, the only solution to turn the check engine light was this product.
Fast delivery.
Good Price.

francisco j perez

08/10/2024

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

Entrega rápida es útil.

Melissa Friesen

01/05/2024

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

It works well and fits well.

Estelle Sipes

01/05/2024

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

Muy buen producto y encaja perfectamente bien.

Margarita Jaskolski

01/05/2024

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

product works great

Works great

Works great, good design and well built. Happy with my purchase.

Excelente producto

Muy serios,rápidos en el envío.muy buena informacion durante todo el trayecto.bien empaquetado.el producto hace realmente lo q dice hacer. 100% recomendado!!!!

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

It actually works!

They made it right

Took a minute with some shipping issues, but they made it right!!!

Excellent

Excellent

My 2001 Silverado smoothed out immediately and gained in gas mileage

This thing actually works.

Everybody needs to buy a bunch of these now, while they are still available. Give one to each of your loved ones. If you live in a communist state, like New York, you are going to need it.

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

No check engine light

Installed, and driving it back and forth to work for a week now and no check engine light yet. Fingers crossed, thanks.

Worked like a champ

I couldn't have gotten the job done without this kit. The 22mm and 7/8 sockets worked perfectly for my hard to reach bank one sensor 1 O2 sensor in my 2018 GMC Sierra 1500 truck. I highly recommend this product.

fit properly seem to be good qualitythis kit worked well for me

this kit worked well for me i used the thread chaser and it worked to clean the threads i liked that there are options as to which socket you can use

Handy tool to have

Great product and price makes it easier to get at the O2 sensors in my bike

works as expected.

having this tool to change my ox sensor made things so much better. i have removed sensors before however it was a pain. this tool made it so much quicker and easier. my only complaint is that the hole where the wrench goes was a little tight. Had to deburr the inside a little.

Peace of Mind for Privacy

As someone who prioritizes privacy, the Vanishing Plate provides reassurance while driving.

O2 Adapter Success

Works perfectly—no CEL code and has been flawless since installation!

Testing the Bypass Adapter

Installed the parts today and hoping it works. Much cheaper than replacing the full Y-pipe with new cats. Fingers crossed—seems to have worked well for others!

Great Fix, Works Perfectly!

After a few adjustments and some wiring, it works perfectly. Thanks for the fix!

It works!

Solved my CEL, due to my tune, and works as designed and claimed! Thank you!

Check Engine Light Solved

Resolved my check engine light problem quickly; the part arrived perfectly packaged and in excellent condition.

Mini Catalizador O2 Sensor Spacer CEL FIX P0420/P0042/P0430 Code Universal (Straight)

Must have

It’s a great design very durable tool and fits perfectly on the o2 sensor makes the job easier and faster

Item added to your cart

Which Mini Catalizador is best?Let our customers tell you.

Let customers speak for us

FREE SHIPPING

FREE RETURNS

Secure Payment

24/7 Support