I am wanting to build a complete new exhaust for my MK2 1600X/Flow Cortina. I have Coby extractors and 45mm piping plus a Coby resonator or two. Could anyone give me some advice on what layout I should have. I have heard someone saying that having a smaller resonator in the middle and a slightly bigger one at the back is good. Also will I need a muffler or just put in some exhaust wool? I am wanting it to be relativly lound but not annoying, I am wanting it to pop and cackle on deacceleration but understand this my not be possible with the stock cam.