Yes, but it does back that the louder SLP exhaust doesn't gain you a whole lot in the mid area over your stock quiet pipe.
I've actually been doing a few calls trying to find out if there is a better pipe that is quieter.
Dyno port had nothing good to say about the SLP 900 exhaust and reported a 5 hp loss using the SLP can when they ran it on their dyno and the only way the SLP made more power was by screwing with the fuel and timing map. No ECO remap required for Dyno Port pipe set.
CPI HP output was 158 at 7200 rpm and 159.3 at 7500, they echoed nearly identical thoughts on SLP performance as DynoPort. No ECU remap on their pipe.