I just got back in the house and I am very tired. Anyways, I took off the silencer above the radiator and got under the car and took off the tube that goes to the silencer, then I covered that hold air tight with duct tape. Is that what you guys have been talking about doing lately because I don´t think it really sounds different at all. I am going to buy an air filter this weekend (new square one), what is the best brand to buy? Price?