Is it ok to have cat warm up off even though I have a hahn dp with high flow cat?

 

Yes, but that doesnt mean start driving once started. It's there though to warm the cat and ect

 

Cat warmup without a cat is lulzy.

 

Give it a few minutes before you drive. Its more for the oil viscosity than cat when you have it deleted. This is what I was told by BYT.

 

yup, ya gotta let it warm up a bit anyway, I have a Hahn catless downpipe and with catwarm up it always sounded like a propplane, just annoying until the sequence was over, I asked Vince to delete it and now it just idles high for a bit until like, 150degrees or so then drops to normal idle at full temp

 

When warm it lets everything expand and actually run tests. The oil is a part of it. But isn't the whole story. There is more to it.

 

I always let my cat warm up nothing sadder then a cold kitty

 

^ lol

 

x2 on whatever everyone else said. either way, any car, its good to warm it up for at least a minute or two before driving, and i DO MY BEST ) to let it get to atleast 160* before any spirited driving...

 

This. I won't pull away until the car is at 100*F, and spirited driving happens above 160*F.

 

Once the car starts to cycle the fuel pressure and the idles below 1000 i usually pull away. some times thats 85* coolant temp, sometimes thats 130* coolant temp and i dont beat on it untill ive seen it cycle past 182 a few times at least...

i dont see how the cat warm up causing that much load on a cold motor is good for anything other than emissions... spooling the turbo on cold oil seems dumb.