Review on Volant 729754 Throttle Body Spacer by Steven Ferguson

A bit annoying but easy to install I just think some people get that annoying whistle and some people don't. I have made. I had to take it off. I wouldn't mind the whistle if it was at higher rpm, but it only did it at cruising rpm, which just made me want to give it more gas so the damn thing wouldn't whistle. I digress though, not a bad product if it does what it says on the tin (HP and MPG), haven't used it long enough to realize the full range of its capabilities. Purchase at your own risk. But less than $50 isn't bad for an experiment.