I believe they are all high ports as well...someone balk up if I am wrong.but I have never seen a low port JDM Brad B. Phx AZ '96 200sx SE-R(w/ this 'n' that) '01 Altima GXE LE > They have no egr or emissions stuff on them and a higher > compression(there are some with 9.5:1 and 10:1). That is pretty much > all I think.