Picked up a 03 dsg cobra back in Feb, car has 2.81 upper, exhaust, mac cold air and predator tune, fairly basic pullied terminator. Want to get rid of the pos mac intake with it's bend and go with a straight shot ram air JLT. Will I need to retune after this? I think a lot of my hesitation at low rpm is due to the mac and from what I've seen these cars do better without any bends in the air intake.