I can hear this sort of slight sucking noise comng from the pasenger side of the engine bay, that seems in time with s slight miss in the exhaust.

Any ideas?

thanks in advance

 

Intake gasket

 

the noise is coming from near the egr module, so i thought it might be a header issue.

How hard is it to change the gasket, and is it worth my time?
the car has always had the slight miss, i just noticed the noise.

 

think i had some water in the gas tank/lines. the miss seems to have disapeared