Hi guys right here we go, Im after some advice on a sports cat. I currently have a prodrive back with a non resonated centre and a de cat centre my question is if I fit a Down pipe high flow cat will it still pass it mot and will the engine light come on?????? Also which is best 1 to get

Thanks guys


Oh yeah and it's a 2.5 system

 

Best bet is sti or Harvey uppipe and a used sti prodrive downpipe and 2nd decat pipe cel may come on as uppipe decat removes a sensor but as car needs remapping all would be taken care of during this process.