Got mine done and it makes a huge difference. Power is noticably increased, but so is the noise.
Sounds a strange thing to say, but the exhaust sounds like its blowing when cold but not as noticable when hot.
Is this normal? Will it sort itself out when the precat gets a bit coked up? Or is it most likely actually blowing?
Its a 2001 coupe which had the all-in-one precat/cat and the chap cut the precat off, welded on a flange and attached the precat.