I got my 1/2 inch reed spacers installed and could notice a difference. The bottom end grunt was greatly improved and a little thru the mid and a teeny on top. It was a b**ch getting the carbs and air box to all line up. But it was worth the $20! I could also notice when I hit the throttle the hesitation was COMPLETELY gone and it revved great. I recommend them to anyone with a shee! Hop on ebay and grab some. I got mine for 20 from billet direct!

-nick