You really should not assume I know nothing. If I knew nothing about Cars, I would not be running my own Gearbox Reconditioning company, nor would I have all the Certificates and Course Degrees in my Portfolio right now.
I just didn't notice the little "rw". Don't take it to heart babe!
unless he used a proper dyno (ie one that measures only the engine without the car attached) in a calibrated environment (same temerature same humidity etc) and used the same professionally calibrated dyno operated by engineers who have a clue what the hell theyre doing (the kind youll only find at automakers and professinal top class motorsport racing teams) anything less than maybe 10% change in hp means jack shit
Your right Jack. That pipe is there for a reason, and that is to get a more direct air feed into the air intake manifold. Removing it or keeping it as is will make no difference to the performance, and I cannot see why such a small pipe would be "restrictive" per say, although I assume the pipe would have a small mesh guard to stop objects entering from the front.
Dunno. Maybe a question for the owners club forum.
Just becasue the air is no longer directed with the mod doesn't mean it's getting less air, in it's orignal state the pipe could be more restricting. Hence why people use such things as K&N air filters, they are not directed at all.
Put the pipe back on and see if you notice anything.