Milltek Down Pipe - to cat or to decat, that is the question!!

[Boydie]

Guys,

I have the option of purchasing a Milltek Down Pipe

Decat at £365

Sports Cat at £626

Althought cost is a big factor, what are the issues with having Revo Software and decat?

What about MOT failure and having no cat?

How loud are we talking with decat and a non-resonated exhaust? (I am considering a resonated centre section)

All help appreciated

Thanks