Sorry, found a fairer comparison: I believe these are the same cars...just different days on the same dyno.
This is more like it: give there is a 8 hp difference, it can be chalked up to different days of dynoing. Unless Bisimoto has more than 1 dyno or they replaced theirs. I don't know if 4000 mi of driving, maybe without an oil change, will eat up 8 hp either.
Either way, the important thing to take away here is the shape of tuned RDX injector curve is very similar to the baseline for the exhuast change so buy the Injectors+ECU tune for mid range bump and the exhaust for different sound an hp bump in the higher RPM range.
Actually no... It isn't from difference of days... if you look at his mods you can see he was running a pride exhaust. He made that power with Pride Exhaust, Pride headers and test pipe and the RDX ecu and tune. We actually removed it and installed the stock exhaust as you can see in the dyno run in the video of the stock exhaust. With the Stock exhaust he came in and baseline 248rwhp.