Review on 🚀 Airaid PowerAid Throttle Body Spacer 400-531 for Improved Engine Performance and Efficiency by Rovy Oppeneer

I have a 2007 Expedition and bought it hoping it would reduce the slight engine chatter at low rpm. (starting with a full stop and new Autobahn shifts) My engine performance has improved. In low-rpm situations, it is "snappy". It's too early to tell if this will help with fuel economy, but logically it would make sense, I use less throttle to get to the same city speed as before. However, to be honest, it may be a while before I see a bonus on gas mileage. 'because it's too much fun to play with my "peppy" new engine :-) No real modifications to my car with the expectation of a K&N filter in the box (no cold air kit, just a filter). 20 minutes and everything was installed and I would say 5 minutes looking for the right outlet and another 5 minutes trying to lean against that huge engine bay.