Hey guys
Recently worked on a G37 and the customer out up a review with good info in another forum, thought I repost here and share
Let me know if you have any questions!
Car: 2009 G37xS Sedan 7AT Mods:
Ark grip catback exhaust, Fast Intentions RHFC's, R2C SRI
Uprev tune:
My first impression of the Uprev tune was that it a nice improvement over stock. I had my tune done immediately after installing my RHFC's and felt the difference in power immediately, especially in the mid-range. There was also noticeably less throttle lag. The Uprev tune came with 3 different maps. Tune, valet, and security. You have the ability to switch maps on the fly but be careful, there were a couple instances where I couldnt switch out of the valet map with out pulling over and restarting the car. During everyday driving the transmission felt noticeably harsher. In stop and go traffic traffic the downshifts were harsher and the car sometimes seemingly had a hard time choosing what gear to be in. Lastly there's there's A/F ratio and HP/Torque gains which will be shown in dyno sheets later.
EcuTek Tune:
My first impression of the EcuTek tune was holy crap. During the first test drive I was in shock of how much more alive the car felt. The throttle response was great and the shifts with the paddles happen almost instantly. Huge improvement over Uprev in those departments. Like the uprev tune, you feel really feel the power in the mid range but it pulls right through the upper band too. During everyday driving the EcuTek tune feels just like stock. The shifts in stop and go traffic are smooth and I didnt experience and jerky downshifts like I did with the Uprev tune. The EcuTek tune only came with one map so I wont have that added piece of mind should I ever valet the car. New updates are expected in the next month or so hopefully something is in the works.
Now for the Dyno Results All these pulls we're made on the same mustang dyno, on the same day.
EcuTek Vs Stock Vs UpRev
UpRev Pulls
EcuTek Pulls (The Tune currently on my car)
Hopes this helps anyone who was wondering about the benefits of one tune vs the other. I am by no means an expert this is just my personal, first hand unbiased experience with each of these tunes. The car simply drives better and is more responsive with the EcuTek tune.
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