i read a previous post and i have the ame problem as he said. the one about slowin down top speed wise. when i was stock i got to 120 pretty easy then hit a down hill ant got 130ish. now i have trouble once i'm over 100. i have an intake a muff and the hotter plugs. i'm manual so i shouldn't have the same troubles
*my theory*
with the new mods the computer is dumping in more fuel and i'm boggin out bad. safc shold fix