5 stars. Product worked exactly as advertised. Order process was simple, they shipped and arrived quickly, and were easier to install than expected.
Good quality build, functions as intended.
They work great and I’ve noticed a better increase on fuel efficiency. I wish I would’ve bought them sooner.
Perfect fitting and no check engine light for emissions.
I needed 2 of these because I had 2 convertor codes for a V6. These worked great and they are made really well.
Fasr shipping
It cleared my check engine light
Fast shipping
It works, my check engine light had been on for years from my old cats, and it'sgone now. This gave me better performance from the engine not reducing power from bad cats.
Good product
I bought the lil cat because my engine light was always on and after some tests I realised my cat was working fine but the problem was indeed the o2 downstream output. So, for a small price, I just adjusted the catalytic converter output to o2 with the mini cat and the engine light went off!
I have a 2015 Chevy Silverado. It broke a valve spring. Had that repaired but while it was in the shop and they were test driving it destroyed my catalytic converters and the check engine light came on PO 420 PO 430. The dealership told me I needed almost $4000 to replace the catalytic converter. I did not allow him to do that and I purchased an aftermarket custom catalytic converter for the truck. I have not had any liability issues, however, the check engine light still did not turn off after I replaced the catalytic converters. I took the the truck to an admission repair shop in Katie, Texas, who ran it on the dino. The Truck passed the mission requirements as far as exhaust gases coming out of the tail pipe. Which is what I’ve continued to do to get my vehicle inspected. However, Texas, no longer uses the dynamometer to test emissions, only OBD test. So after the new catalytic converters and new downstream, oxygen sensors, and new upstream, oxygen sensors, the vehicle still failed to keep the CEL light off. I purchased your product, hoping it would work, but not really believing it. Your moneyback guarantee is what prompted me to purchase and give it a try. I want you to know that they worked perfectly. My vehicle still passes emissions test, the check engine light is no longer on, and there are no DTC’s or misfire data whatsoever in the ECM‘s memory. This was a surprisingly great experience for me. I wholeheartedly recommend your product for anyone having similar situations.
Super effective does exactly what it’s says. Definitely recommend doing some research where your downstream O2 sensors are prior to order to ensure it’s accessible and which angle is beneficial for your setup otherwise you might have to get creative. But outstanding service, shipping speed was quicker than quoted for me and cleared my CEL. Will do business with them again!
Great company to work with
I can’t believe it! I’ve fought for over a year trying to get the PO420 code and Check Engine light to stay off. Even replaced entire exhaust system with after-market new one, including both catalytic converters! Also replaced both O2 sensors. Erased codes and they popped back on within a day or two. On my 2017 Crosstrek, I can’t use cruise control when check engine light is on!
Installed this plug, and it’s been over 3 weeks with NO CHECK ENGINE LIGHT!!! I’m amazed!! GREAT PRODUCT! What a wonderful fix!!! THANK YOU!!!!
Solved problem
Works great used it after I installed new headers on my 991.1.
I kept getting a check engine for the down stream 02 sensor and I had put a brand new one in. I installed one of the Mini Catlizador 02 sensor spacers and no more check engine light.
It worked grate on a hard to remove 02 sensor. They seem well made and strong.
Worked fine
Very greatful for great communication ! I ordered a part that was missing and ups failed to locate and this company shipped me a new one that I got! So greatful for the excellent service!
Met my needs for Q7 3.6l Illinois car
Did EXACTLY What I needed it to do!
great
Worked perfectly no check engine light
