Kooks High-Flow Cats Failure

[2021 Mach 1]

I have a tuned 2022 Mach 1 with Kooks High-Flow Cats. After 2.5 years, one of them has failed. I see Kooks only makes 400-cell Greencats now. Mine were 100-cell. Due to cost and timing, I'm switching over to Magnaflow cats. Any thoughts from others? Thanks.

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[NGOT8R]

I have a tuned 2022 Mach 1 with Kooks High-Flow Cats. After 2.5 years, one of them has failed. I see Kooks only makes 400-cell Greencats now. Mine were 100-cell. Due to cost and timing, I'm switching over to Magnaflow cats. Any thoughts from others? Thanks.

Any pics of the damaged cat? Curious as the whether the material dislodged itself from the walls of the cat housing like my Ultimate Headers cats did?

 

[JoeCee]

Gesi are the best. I’m sure those magnaflows will crap out too.

 

[robvas]

Are you NA or boosted?

 

[2021 Mach 1]

Are you NA or boosted?

N/A

 

[junits15]

N/A

All the 100 cell cats are basically the same. If you can afford it go gesi.

 

[junits15]

Also fwiw I’ve had the gesi cats on my car since 2023 and they’ve been good for 20k miles.

 

[Joshinator99]

GESI Gen2 UHO cats are the only way to fly

 

[mtr5.0]

Thought I heard the kooks H.O. green cats are rebranded GESI . Not sure how true that is thou.

 

[K Myers]

If you dont have a instructions why use the.

 

[junits15]

Thought I heard the kooks H.O. green cats are rebranded GESI . Not sure how true that is thou.

they are

 

[mtr5.0]

Also fwiw I’ve had the gesi cats on my car since 2023 and they’ve been good for 20k miles.

Are you running the kooks H.O. green cats? And if so what model
Thanks.

 

[junits15]

Are you running the kooks H.O. green cats? And if so what model
Thanks.

Mine are the non-HO greencats, so they don't have the upgraded s-wound core for strength and they're not as good at emissions reduction. Still I've had no issues, i don't think the HO-cats were an option when i bought this kit.

 

[Joshinator99]

GESI makes a few different versions with different horsepower ratings. Worth checking their website to make sure you are getting the right ones.

 

[Zrussian13]

Any pics of the damaged cat? Curious as the whether the material dislodged itself from the walls of the cat housing like my Ultimate Headers cats did?

Pics or it didn't happen...

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