Decat and EGR delete

[Peter_HMR]

Playing with the above but not sure if it is worth it.

What are the pos and negs for each one may main concerns would be

Will removing the anti-shudder valve cause problems
Will removing the cat cause the turbo to fail faster
Will removing the cat fail the NCT/MOT
Will removing the CAT throw an engine check light

What sort or preformance gains if any could I expect. My main reason for wanting to do it is firstly I like modding things but I would like the air intake to stay cleaner.

[caldirun]

Playing with the above but not sure if it is worth it.

What are the pos and negs for each one may main concerns would be

Will removing the anti-shudder valve cause problems
Will removing the cat cause the turbo to fail faster
Will removing the cat fail the NCT/MOT
Will removing the CAT throw an engine check light

What sort or performance gains if any could I expect. My main reason for wanting to do it is firstly I like modding things but I would like the air intake to stay cleaner.

What about the local kids air intakes, not worth considering?