Just remove the middle, it's a reasonable level of noise with a few 'nice' spots through the range and doesn't cost a fortune. Probably helps with turbo spool but I don't have numbers to back that up. If it's a normal cupra; as recommended by Lee on here, get a replacement non-res pipe from a 1.9tdi. Provided you have a grinder or a sawsall and an ounce of common sense you can replace it yourself in a couple of hours using axle stands.