when i bought my car the kid disabled the smoge pump is this good bad? https://www.nopistons.com/forums/pub..._DIR#>/dry.png

If you still have cats they will clog...

****!!!!!!!!!!!!!!!!!! i just put all new cats on about 6 mouths ago. do you think thay are fucked

probably.

But it couldn't hurt to remove them and inspect them, then either put a pipe in place or get an air pump.



have you noticed any downturn in the car's performance since you put the new cats on?

no it was a lot better when i put them on

from what I understand, if it was clogged, you would notice performance decreasing. You might just want to get a smog pump put back on. I'm sure there are a ton of them floating around here.

sorry i am floating around here to learn more about the 2nd gens.. dont you need the smog pump on some 6 ports?

i had my main cat (fd) for almost 7 months without an airpump(removed not disabled) and i saw no problems but eventually ur cat will clog due to lack of air at lower rpm. if u do a lot of highway driving u might not even have to worry but wither way id sugest wither fix the pump if u wanna pass emissions or do what i did and get a midpipe

If you mean to activate the auxiliary ports, then yes, you need then on the S5 n/a FC's. (confused by this? check here) The S4 n/a FC's use exhaust back pressure to activate these.





If I'm wrong, someone please correct me. I'd hate to misinform some one.