I took the baffles out of the elbow as well as the screens. I did leave the screen coming out of the air box just for safety sake. The car sounds better seems to have more low end grunt too. If I remember correctly I picked up 5 HP by doing this mod. Eurocharged documented each change as we did them. E-mail clint@eurocharged.com or jerry@eurocharged.com ,I'm sure they would share. Tell them i told you to e-mail them. They are moving their Houston location to I-10 West area close to Park 10, so they may be a little busy. I would wait a few days then e-mail. when I got my car I think it was 176 RWHP and we have it up to 211.4 RWHP now. It cost less than $500 to add that much.