Very strange question, but im interested in going BPU, but I really want to keep the stock look of the car so would be keeping the standard exhaust. If I have to double decat, is this going to make the exhaust really loud and droney? Dont get me wrong I do like that sort of thing normally, but for my car I want to remain very discrete. I love modified supras, but im deliberately keeping a stock look just to be a little different, and plus I believe that unless oyu have a lot of cash to throw at it you shouldnt bother.
So how discrete can BPU be? I dont mind noise so much on the outside of the vehicle, but I dont want to hear it droning on the motorway.