Depending on how many kms the vehicle has done it may still be wise to remove the EGR and intake and clean it all out.
I pulled the inlet manifold off my old diesel car (after drowning it) and the inlet manifold was near 50% restricted due to sludge build up.
After cleaning it all out and blanking the EGR the car went much better and used a little less fuel.
Before removing it the car wouldn't rev over 3000rpm, afterwards it would rev up to 5000 no worries,and performance was greatly improved.
Can't comment on your exact vehicle but it is definitely worth doing.
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