I bought some DSM 450cc injectors from some guy last year and he said they had been cleaned and flow charted already. So I sent them to cruzinperformance to get them cleaned again just in case. This was the preliminary result 458, 480, 469,469 Now this is the results after service. 480, 485, 485, 485. I plan to install these in my Si when I tune my hondata. I will only use them for about a month cause I'm waiting to send my 550's out to cruzin but right now they are a little bit back up.