My goals were more air and no extra noise. So I wanted to keep the factory air box in tact. I did hog out the intake portion below the air filter and I also removed the internal horn in the lid so it just opens right into the MAF with no obstructions. It has a K&N air filter. The MAF is a Z06 Corvette unit with the screen gone. It is larger than the stock GTO MAF. The tube is from LS1 Speed, I ordered it from tbyrne without the cone filter. I ported and polished my throttle body and also adjusted my throttle stop and bypassed the coolant. It sounds very close to original and the power feels noticeable better. Here are some photos.