Hello folks. I'm new here. I spent about a week researching options for my situation and e-mailing a bunch of local tuning shops to find out the best option for me but alas, I can't seem to figure it out.
I just leased a 2019 BMW 440i Gran Coupe Xdrive and I was hoping to find an easy and cost effective way to increase engine power without hampering the drivetrain or the cooling system. Since I won't be installing any aftermarket parts on it (It's a lease), I was hoping for a "simple" ECU flash or tune up to achieve just that.
After searching for a while, I narrowed my options down to 3 choices and here they are:
https://www.mgflasher.com/engine/
https://www.tmcmotorsport.com/tuning...tails/10110648
https://www.vividracing.com/tuned-ec...152536712.html
Now I'm not an expert at this. My previous vehicle was a 2016 Cadillac ATS 2.0T which I used a Trifecta tune on and that worked great so I was hoping for a similar option with this BMW.
Which one should I go with and what other options do I have? The local shops here are asking for $1000 + tax with no dyno testing. I have no idea if it's a good deal or not.
Cheers
Edit: Refer to my last post in this thread for the disaster that the tune ended up being.