I know the talk of intakes is well into the past, but I'd say negatory on deleting the intake piping.
The stock rubber piping is about five or six pounds of weight. If you want, you can get rid of the snorkels and whatnot pointing out of the engine bay, but deleting the length of pipe between the air filter and the throttle body can have negative effects on power and efficiency.
Simply: That piping length is tuned to provide you power... we've experimented with it on a number of cars and simplifying and shortening things leads to less power, which you don't want when going up hills.
If you want a WAI, go ahead and do it, but leave the stock tract after the filter head. Or, if you want better flow and efficiency, replace the piping with some nice smooth stainless pipes and bends.
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