that car sounds very familiar from .org... and with it being 158bhp i think it is a streetwise? or if not a ZR
it is a good spec and pending on price you are getting all the 'cheap' mods done already...
You may find the car a touch smokey at that level of remap on the OE turbo when you have it off boost or under WOT.
And to actually answer your question it should be yes.
the donny pipe\inlet manifolld and charge pipe help the air a bit better. the roose hoses are OE silicone upgrades.
the decat is a 'wingy' and fit for purpose.
boost should be 19PSI (they should have known better
)
but ultimately it should be reliable. keep an eye out on coolant levels as if any will go it will be the HG... ask what miles it has done since the SDI's were fitted and remapped and how much full throttle has been used. I am not expecting anything un-toward but curious
(mine has done 20K since it was heavily tuned and popped two gaskets in that time)