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Hey guys, so I'm debating about selling my PCV and just doing the ECU flash. Correct me if I'm wrong, the ECU flash will be tuned to whatever is done to the bike like full exhaust, filter, block off plates ect, also can be modified to the riding style, mode(s) setup, fans and the list goes on.. So, why get a PCV if the flash does the same thing and then some? I'm looking to go with VCycleNut, unless I find someone better (which at the moment, I can't).
 

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I may be one of the few who votes for PC (or similar- I have RapidBike), but I think its the way to go so long as you have a top-notch tuner that can dial in you fueling. I realize that is easier said then done, but I have had both and ended up re-flashing my ECU back to stock. I think a best case would be to get both and get your fueling done by piggy back module and then dealing with removing speed limiter, etc. with a flash. I may end up doing that, as I have a lifetime of free re-flashes with Vcyclnut. Also, I may be one of the few who had issues with an ECU flash, but my bike became un-rideable do to fueling issues which were remedied as soon as I flashed back to stock. Many of the benefits of ECU flashes are now handled by piggy pack modules at this point. For example, RapidBike Pro allows you to remove speed limiter and rmp limiter for each gear. It also can dial in a quick shifter and has custom traction control and launch control. I don't have the pro model, but the base model with auto tune (uses my stock o2 sensor) has really dialed in my fueling nicely for a full SC-Project exhaust and K&N air filter. Keep in mind that when you get an ECU flashed it often uses fuel settings for similar setups, not exact. I am just guessing, but I think the people who are really happy with flashes are the ones that have a map for the exact exhaust and filter setup on their bike.
 

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I'm running both. Ivan's flash with my own custom fuel map.

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reasons for ECU reflash are:

- 90/95 temp trip point (!!!!!!!!!!)
- eliminate fuel cut (!!!!!!!!!!)
- true deceleration maps (IAP-based)
- no speed limit (but this is probably good only for suspension upgraded bikes or SP version). 240kmh on speedo (I beleive ~4-6% less real speeds)

to be honest since 2016 stock map is quite good anyway, where is no real reason for PCV since that. Stock map even with akra no cat and no db killer does not make it run lean anymore. At least at full throttle). But partial/closed throttle feeling can be properly changed only with full ECU remap and IAP maps tuning.

I have my MT09 running little rich (12.8 full throttle, 13.2..13.3 middle/low acceleration, 14..14.5 - <3000rpm and deceleration). Have 7 liters per 100 km with HUGE traffic in Moscow and aggressive riding.
And i'm happy with it!

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90/95 temp trip point - makes feeling bike is running a lot cooler :). There is big difference of air temp coming from rad to my balls (stock is 100/105)

Power wise you makes MUCH more difference with nocat exhaust. Stock 108 whp with akra, 113 whp - tuned (measured on dynojet bench rig)
 
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