If so can you tell me how you've attached the mid section to the cat? I've had right trouble getting a proper seal on the cat. The sleeve supplied (pictured below) nearly gives a proper fit, but because of its lack of cuts down the side of one end it can't be clamped onto the cat properly. My mk2 Jetex system was a piece of p*ss to fit,it doesn't help that this system is a generic/fit all Mk3s system and has no instructions. Any help much appreciated