94489T

Just bought 89 944T with 62,000 miles the pervious owner included an exhaust with the cats gutted. I swaped the factory pipes for the gutted cats today and went for a drive. It seemed to me no noticeable difference. I did notice that the boost came on quicker but was lacking some pull could not put my finger on it? Should I change back to stock or is it just my imagination? What's your thoughts?

Thanks,
Will
Only mod lighter flywheel,LBE and Author. chips.

jacklet

if the cat is good and not plugged there isn't much of a diff

black944 turbo

The only difference will be quicker spool and that is it.

Rogue_Ant

I think with elevated boost, the cat-delete would be more noticeable.



Rogue

951North

Wasn't the difference between European and North American Cars cat/no cat and the HP different was 220 to 217, IIRC?

Perry 951

I notice I have much better mid rage pull with the cat in place along with the quicker spool. I keep it in for the most part.

black944 turbo

That is interesting, I have noticed the opposite. I guess it all has to do with the way your car is setup.