just get a lenth of pipe from your local motor factors, chop out the cat and the middle box and weld the strait pipe in, thats how mine is done with a standard back box as i didnt want any noise.
for the price of the decat your looking at you will get a lenth of pipe and if your handy with the welder shouldnt cost no more than £10.
mine was already done when i got the car i just had to weld it properly
