Yeah the power gain from this pulley and tune is pretty amazing. Anytime I run across something willing and worth running I like to 'play fair' by giving them the edge. I'd do this by letting him take off first, so I'd wait for him to downshift and wind into whatever gear he wanted, then tap the gas to look like I was going so he'd floor it and when he did I'd floor it. So basically the race would be my front bumper starting at his passenger-side door so he could see me cheesing at I passed.