The best replacement for air intake is short ram.

The best alternatives to air intake are rated as following:
★★★★★  short ram
★★★★★  cold air intake
★★★★  air filter
★★★  exhaust
★★★  short ram intake
★★  k&n filter
★  supercharger
★  ram air
★  intercooler
★  exhaust system
★  ram
★  stock filter
★  air intake
★  pod filter
★  ram air intake
  snorkel
  high flow filter
  k&n drop in filter
  k&n
  intake
  hot air intake
  stock intake
  aem
  drop in filter
  warm air intake
  aem cold air intake
  open pod

Your alternative for air intake is not listed? Suggest!
Speaking about air intake, one probably shouldn't forget about supercharger.

Other search terms related to air intake and their ratings are:
★★★★★ supercharger
★★★★ exhaust
★★ carburetor
★★ throttle body spacer
intercooler
most hp gain
You have in mind a companion for air intake and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of air intake in all years. Click on graph for more.
air intake
short ram
cold air intake