Review on Enhance Performance with Rugged Ridge Throttle Body Spacer for Jeep Wrangler/Gladiator 3.6L Engines by Marlo Schlachter

not what I expected. At very strange RPMs (1900-2300) there was a buzzing/whistling noise. It's subjective, but the Jeep felt sluggish at low rpm (acceleration) and I actually lost 1.5mpg in a week of normal driving. I was expecting a whistle from the spacer but was hoping it would get higher in range rather than slowly pulling out of my garage. removed after a week. I'm sure it works great for some settings, but the noise and impact of driving was a handicap for me. The great TBS debate continues.