I've been researching the ECU flash options for my '20 RTL. Here's some info that I've gotten along the way. Dyno Jet only has a application listing up to 2019 and not very many tune options for the Power Vision. Here is an email I received today from Dyno Jet...
Thanks for the inquiry. The PV3 does have the ability to work on this model but we have not seen a stock file from this ECU so more than likely we need to get an ECU in hand before can add support. I can't say with 100% confidence unless you had a PV3 to connect to your vehicle and get me some data.
We also only have stock improved files for the Spyder line at this time. Thanks.
I also contacted Monster FI about my '20 model year. I was concerned that a dealership could detect if the ECU was updated....
Dealer cannot plug in and know anything.
Except if they ride it. Or because the ecu stores max rpm, if you choose a flash with max rpm above that, they may see that.
As for warranty, depends on dealer. Some don't care what you do. Some don't even like tire changes or muffler changes.
One thing is that any warranty denial needs to be related to engine tuning. Brakes, leaks, steering etc (most warranty issues) have nothing to do with ecu or engine tuning.
If the dealer ever over writes the ecu, it's free to have me reflash it.
An option for you is our $350 usd handheld. It allows you to flash between stock and tuned, anytime you want. Just put it back stock before going to dealer.
. I already have a RLS decat and muffler on the RT. I'll have the stage 2 flash done .
I have reached out to Wick-it Performance but haven't heard back yet. I'd like to keep my ECU in the US, concerned about shipping delays and such with all the Covid-19 stuff going on,
although the guys at MFI say they haven't seen much change in shipping times yet.