Anybody running catless or hfc with jb4 ?

[Mlan21]

sup guys I currently have a 2021 Kia stinger with injen cold air intakes borla cat back and secondary cat deletes with a jb4 and sparkplugs gaped to 0.22. I’m really itching to get some primary catless downpipe for sound and performance gains but I’ve heard of the oil burning issue . Need some inputs and advice thanks

 

[Oryan]

Curious about this as well. I'm intending to start running HFC primary downpipes later this year.

 

[MickeyDee]

Curious about this as well. I'm intending to start running HFC primary downpipes later this year.

I’m running the ultimate performance HFC downpipe combination with JB4. I haven’t had any issues as of yet. I did read it on here that users using the same set up were experiencing the above issue. However, I was told 100% by the owner of K8 store and I think it’s Matt from Ultimate Performance that there have been no reported incidents and that their product would not cause the issue.