I have a 2010 GT with SLP Loudmouths. I LOVE the sound, but the drone is somewhat annoying. I was looking around and I know about Corsa's no-drone technology so I looked up the axle back on Summit and corsa's website. I'm assuming the extreme series is the loudest, correct? I want the loudest of the three. But, I know that most axle back kits for 05-09 do not fit correctly on the 2010s because the valence is longer/farther back on the 10's. Both listed the same part number for 05-09s and 10's. What gives? Will it still fit the 2010 without melting part of my rear bumper? Also, just in general, what is people's take on corsa. Good sounding/quality stuff or no?