Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Don't waste your money
Review: This product will do nothing for the 2003-2005 Accord. I ran this spacer on my Accord for almost two years. During that time, I raced the car in autocross events. There was no noticeable increase in torque or horsepower. The only noticeable change resulting from this spacer was a hissing sound at partial throttle. The sound was caused by the grooves on the inside of the spacer. Needless to say, I took the spacer off the car and noticed no decrease in performance. The $100 spent on this would be much better spent on a cold air or short ram intake.As a closing comment, throttle body spacers CAN be beneficial in certain engine setups. This is especially true with V8 engines or those with certain air intake configurations. For the 7th gen (2003-2007) Accord, you will not benefit from this spacer.
