Which Y pip with header?

[Red Trans Man]

I plan on getting Kooks LT's but not sure which Y pipe to go along with it. I will need cats with all emissions hook ups. Does Kooks sell a Y pipe with cats and if so, are they good flowing cats?

[The Scientist]

Yes, kooks does have the option for an emissions friendly set-up with catted y-pipe and they are high flow cats. Check their website for more info. The other option is their "race" set-up with only 02 senser bungs and no cats.

[Red Trans Man]

Thanks, I found them with cats. Just want to make sure their complete set up with cats is a good choice.