Second hand Decat Up-Pipe?

[ChrisD]

Hey guys, 

 

I want to get a De-cat Up pipe for my 03 Blob, but here is my issue 

i dont want to spend £200 + Quid just buying the pipe getting a 1.75" perrin one 

I have found a STI de-cat one second hand. is it safe to use a second hand one? what do i need to check for before buying it? 

 

Thanks in advance :) 

[stants]

Should be ok, just check the flanges are ok with no cracks etc