skl

Search not helpful and trying to find the link again for those little "cats" when running catless headers. Little right angle adapters for "helping" the ECU avoid a CEL.

TIA.

Nate2046

These?

https://www.fabspeed.com/fabspeed-un...nverters-pair/

skl

Yep- thx. Ordered!

iammacey

Interesting. Had not seen these. Anyone use them with Dundon headers and tune?

Fabspeed Motorsport

We sell TONS to customers running every set-up under the sun! They should work great.

ncstatesoccer

You shouldn't need these fabspeed ones for Dundon headers. The Dundon headers either come with the mini cat extensions already welded on or they provide you with screw in mini cats.

When I purchased my headers from them they forgot the mini cats and within 100 miles I threw a CEL. contacted Dundon, they asked me to check if I had the mini cats (I didn't) and they sent me a pair. Installed in half an hour, cleared codes, no issues since in 200+ miles.

iammacey

I have the Dundon tune and don't throw a CEL. More intrigued if these would eliminate some of the petrol smell.

I have the race headers on my GT4 and they didn't include mini-cats. Nor have I seen this discussed anywhere.

I'm no expert and I'm not trying to speak as one. I could be wrong or lacking knowledge.

ncstatesoccer

​​​​​​No the mini cats will not change the smell. They are extensions that come off the headers for the post-cat O2 sensors. Inside the extensions there is a small amount of catalytic material.

Feel free to contact Dundon to confirm.

skl

Eventually I may do a Softronic tune, and they can add a fix for the CEL, but want these in the mean time. My son has catless headers on his 987 Cayman S and I love the sound. Yes, there is some smell, but I already drive AC'ed 914's so I'm used to it.

Klepper

I use these on my 981 GT4 with Soul race headers, and I have never thrown a CEL.