Just got my Jestr flash, took him less than an hour two send my ROM back. Fuel maps look sick, no knock counts, this guy is no joke people. He talked to me during the entire process and answered a $hitload of annoying questions. The best part is, i send him some logs, and he adjusts the flash for me!! this guy is the real deal, do your self a favor and get a JESTR flash. check out his website for all pertaining information http://www.jestrtuning.com . My evo has a permanent tuner now!

 

+1 for Jestr!

I should get my ROM here in the next few minutes and have it dialed in this weekend. Sent an initial e-mail yesterday, receiving ROM this morning. Answered all my mails very quickly. Haven't tried the tune yet, but if it is half as good as his customer service then he will do all of my future tuning.

 

Yeah I regret selling my old Evo 8 with a Jestr Tune!

 

The best ecu flasher without any doubt.

Thanks John,

 

70,000 Jestr tuned miles right here

 

the best kept secret of evom has finally been let out of the bag these past few months! jestr FTW!

 

i agree i got my rom back in 30 mins, logged it no knock...pulls 23 psi hard and holds...even get the mivec tuned

 

I just sent my ROM to Jestr, and after reading this and some other Jestr posts, I'm really excited to get it uploaded back into the ECU as quickly as possible!

 

I have to say I am very happy with the response time of the service I email him in the morning and within a half hour it was done! Tested the tune out and it pulls hard to redline! I highly recommend!

 

john indeed is a great guy to deal with !

 

He did the same for me. I asked him a lot of questions. He replied back to all of them in a timely manner. When I received the flash I immediately flashed it into my ecu. I am very pleased with the results. My car pulls hard all the way to redline. The only mod I have is a drop in filter. He is a great tuner.

 

I deal with John everyday, we talk and I got one of my friends to switch his flash over from another "tuner" from here, I told John I had limited time....He made a map for me in 3 mins, yes 3 mins. I flashed my friends ECU and man what a difference he could tell, even from another tuners map. Im glad to be Jestr flashed also, greay guy to work with and will do anything to help.