K so I have a Vortech V-2 SQ S-trim and I used to see 10 pounds of boost. now I am only seeing 7 or 8 pounds now, and I just installed a power pipe and still nothing. So I figure I have belt slippage. I tried to tighten it but could not get it any tighter than it already is. I was looking into changing out the pulleys to a cog system but was wondering if some belt slippage is good because it lessens the stress on the charger. Has any one changed the pulley or has had this problem before. I also wanted to know about upping to boost with a smaller pulley has anyone pushed more then 10 psi on the S-trim? Thanks alot.