I have one. I've also heard 61/62 is similar. 5 passes netted me the time in my sig with not alot of tuning. 25psi, slicks @ 14 lbs, FP @ 38 line off, EGT 1550-1600, 1.77 60' . That's with an unlocked converter, stock ported elbow and through the muffler. Not too shabby I'd say (for now). It does pull hard on top too.