Louder sound and a different look than stock exhausts. You might gain 1-2 hp on the dyno, but not gain any speed measurements.Įxhaust give you three things really. Additionally, Ivan recommends an aftermarket air filter for both of these options.To be honest, power gains via exhaust are hardly ever enough to produce any speed increases. This is less clean of an option, so people often opt to take the system out entirely and use block off plates while they're already in there installing an air filter or something similar. You can easily plug the hosing and practically remove it without actually removing it. The block off plates are a different issue - they block secondary air injection and are optional as far as I am concerned. However, it also means you don't have to pay for a power commander.Īs far as I am aware, Ivan is still offering both setups. Because there is no power commander, you now do not have the option to take this to a dyno tuner. In addition, the ECU now comes preloaded with the fuel map that was previously done on the power commander. The ECU has the changes to fan turn on speed, low speed torque limiting removed, ignition timing changed, fuel cutoff eliminated, etc. New Ivan Package (can be done with, or without full exhaust - full exhaust makes more peak power but similar down low: You also have the option of taking the bike to a dyno tuner to get it fine tuned for your personal setup. The power commander has the premade fuel map that he has created for a given exhaust/intake configuration. Old Ivan Package (can be done with, or without full exhaust - full exhaust makes more peak power but similar down low:ĮCU + Power Commander.(there are more or less expensive power commander options). Even if there would be another couple hp in getting the tune specifically for the stock exhaust, the rideability has improved so much that I am happy.Īlright, let me try and be super comprehensive to clear this up. I told me he'd be happy at any time to go back to a flash+PC if I wanted it, but I think I am more than happy with the current setup. According to him, he wasn't concerned at all about using it on my essentially stock bike. PS: One minor thing of note, Ivan mentioned that the ECU tune was actually done on a bike with the full Akro setup. For anyone on the fence about doing this upgrade, especially considering the now cheaper cost of doing it, definitely take the plunge. I can't wait for summer where I'll be reaping the benefits of the lower fan turn on temperature as well. I am also convinced that the higher RPM's have become less buzzy. I no longer need or desire to do this at all - rolling on the throttle again is buttery smooth. I previously used a bad habit, where I would slip the clutch a bit as I rolled on the throttle to prevent the imbalance caused by the jerkiness of the throttle response. Not only is there WAAAYYY more power, but it is also significantly smoother. ![]() I still have a stock cat/midpipe with slip ons, so while there is a bigger hit (and meaner snarl) in the top range, the biggest difference is down low. ![]() I just got back from my first day out since the upgrade and wow, what a transformation below 6,000 RPM. I installed the air filter and block off plates as well and boy what a difference. In my case, I don't plan on any further updates, so just the ECU was fine with me. This saves you the money of having to buy a power commander, but also means that if you ever wanted to go get dyno tuned, you'd have to buy a power commander first. He called me and said that he is now offering a new package - one that you don't need the power commander for! He said that he essentially has added all of the tune to the ECU, enabling someone to get just an ECU flash and get the benefit that previously required the ECU + PC. ![]() I just recently sent my ECU out to Ivan expecting to get the ECU flash, power commander, air filter, and block off plates.
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