I am in the middle of getting AWE Cats. After speaking to the tech guy ,he advise that on a 996 model you can only use 300 cell cats.However i have been reading a few postings here and some folks are using 300 cell?
I'm just trying to get clarification what in fact can & cant be used & what are the advantages/disadvantages of going 200/300 .
Thanksssssssssssssssssssssss!

 

i woudl iek ot knwo this too... But i have been told with 200CELL you will throw a CEL, but ever car is diffrent...

how many CELL is Stock Cats?

 

I thought that the stock cats were 200 cell cats. The aftermarket cats I put on my car were 100 cell cats, and I have never had a CEL.

 

what is the difference in 100/200 & 300 cell? i assume 100 allows more flow which will be louder?

 

think of your cats as a honey comb through which exhaust gasses get squeezed. the higher the cell number the denser the honey comb the less exhaust can flow through for a given back pressure. so, 100 cell cats flow a lot more exhaust than 400 cell cats. (and get check engine lights. )

 

Anyone get lights with the Fabspeed sport cats?

 

What are Stock Cats? 200Cell?

 

If I remember correctly, OEM are 400 cell

 

What has stopped me from getting 200 cell cats is concern over cel and loudness...I like my PSE sound and don't want to change it.....but a little more power is a good thing ...decisions...decisions...decisions....

 

stocks are 400........ high rec for the cargraphic ones 200 cell.... suppose to not set of the cel

 

Stock cats=2 sets of 400 cell per side.Aftermarket=1 set per side at 100-300 cells.

 

3 deep is correct!

 

so will there be a huge difference going from stock to say AWE 300 cell cats?
thx

 

100 hundred cel cats here with gen II FABspeed Exhaust....no CEL, baby!

 

I wont say huge,but it does put a smile on my face every time i drive it.The cats are where you gain the power in the exhaust.The car feels better in every way.Its an improvement you can actually feel and i would 100% do it again.Just remember that when you replace the cats and mufflers your removing a lot of backpressure.The combination of the 2 might cost you some lowend torque.