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®!

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🗣️What our customers say

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 599 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)

The Minis are fantastic

The performance of my automobile improved greatly!!

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

Have not installed them yet.

Have not installed them yet.

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

Just got mine and it took me 10 minutes to install and it works FLAWLESSLY!! LFG 🙏

The install was pretty strait forward and looks great on my R35!

Great Product

Great Quality. Used several times and never snapped on me. Some sensors were extremely hard to remove and this did the job with the right socket wrench of course.

Changing auto oxygen sensors

Made job much easier, regular sockets and wrenches will not work

Check engine light

I installed it and the check engine light disappeared!

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

O2 sensor spacer

mini cats
It worked great and I passed inspection

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

Great unit

Worked great,love it. Thank You

Es de mucha ayuda.

Es una herramienta muy útil en el cambio de sensores de oxígeno, me fue muy fácil usarla y terminar mi trabajo, la herramienta es recomendable..

Great on old vehicles

Took me about an hour to install the kit, but it was easy to do so, hardest thing was probably routing the wires or getting the nuts on the plugs cause I didn’t weld the nuts in like bungs.
Very easy and straight forward to install on something basic and wouldn’t be much harder on something with multiple coils either.

Flames are nice to, not to small and you can definitely hear them when they are doing there thing.

It works!

I bought this adapter so I wouldn’t struggle with the regular wrench. Although I tried the 22 wrench first, it was so hard it wouldn’t even budge. Then I used the adapter and boom it came off within 5min. The best tool to use if you’re trying to replace your oxygen sensor!

got a straight angle one for my brothers car

worked perfectly, still no check engine

Fixed check engine light

Installing was easy. You will need an inspection station that does not check to see if the exhaust is stock

Highly Effective and Quick Fix

This adapter saved me a lot of hassle. No more CEL warnings! Great quality and an easy solution.

Small Fix, Big Results

Had a constant CEL on my truck after upgrading the exhaust (even with high-flow cats). After installing the Mini Catalizador, no more CELs!

Good Quality and Easy Fit for Tight Spaces

The Mini Catalizador seems to be made of good quality, with adjustable angles that will fit easily into tight spots. Plan to install it soon on my '02 Subaru Outback.

High-Quality, Well-Made Product

Installed the Mini Catalizador in the downstream O2 sensor location on my 2005 Jeep Wrangler TJ with the 2.4L engine. The error code is gone, and everything’s working perfectly!