Hi welcome to the forum

If your looking to change your exhaust i have a magnex one im selling, it splits into two under the car and has had both box`s removed, my car is very low and it rarely touched the ground while going fast, only if it was a bumpy road
Its maybe worth your while getting the car checked over at a rolling road too just to make sure things are ok and its not running to much boost
let us no how you get on