Okay, so I ordered arrow cans and ecu.. already had pu kit on but stock cans and ecu.. so they shipped the kit without one of the hanging brackets so I decide to put the ecu in and take a ride.. 15/42 gearing, and she does power wheelies now! WHAT A DIFFERENCE just the ecu made on my USA detuned sleeper - I will update you when I put the arrow silencers on with db killers.. when the other bracket comes in.. cheers
TIGER, Are you still running with the stock pipes and ARROW ECU? How has the performance been? Do you also have PU kit installed?
My Arrows came with DB killers. They are small mesh cups which fit in end of mid-pipe before cans. When I have a chance, I will look to see if there is a part number on them or in the shipping material.
Arrows ECU on it's own with stock cans is about 70% of the benefit, the arrows cans are the other 30% of the benefit of the Kit. If you do not have a JD Tuner, ...now would be a good time. And, one more thing.... don't forget the Iridiun sparkplug, it gives a nice little extra on top of the Arrows.
arrow ecu is programmed in various ways (im no expert) but it also advances spark timing in addition to fuel management the result is phenomenal