Hello, does someone know where to get cheap open air intaks? 100-140 Euro are too much for me. I have a Ej9 and I drove once a day without air filter and that sounded totally cool. does an open LF sound louder, quieter or the same? Do I have to make a tuv and a decrease? Are there differences between those with ABE and without? Do you have to pay attention to something with the open for connection, or just remove the plastic tube from the LF cover and clamp the new one with LF? r Questions…. Thank you in advance for replying.