Personally, before I put ANYBODY'S tune on my car, I want an answer to the questions I posted in this thread long ago: Namely, what happens when you run LOWER octane gas than the tune is "spec'd" for. The tuners (incl. Chris) seem to have posted some contradictory statements on this.
One of FRPP's main points (if you read the whole blurb on their tune) is that in CONTRAST to other tunes, theirs fully responds to octane variations, just like the "stock" tune.
With 91 pushing $4.00 (will be $4.50 by summer
), it would be nice to be able to switch to 89 without having to re-program.
Also, realize that if your programmer (Procal or SCT) ever dies (and electronics have a way of doing that...) you will not be able to DIRECTLY restore your stock tune. For SCT-based tunes (Bama, Brenspeed, others) you have to contact SCT with your PCM ID # to get a default factory "restore". Don't know how FRPP would handle this?!? What if (like one other thread here) your PCM sticker got removed??? Seems like at the very least, if you're going to use a tune, you'd better write down your PCM sticker numbers someplace safe. Remember, your power train warranty is 6 years. Is your programer (the actual SCT X3 device) going to safely "backup" your stock tune for that long???
Why do you care? Well, when you go to the dealer for ANYTHING (ok, prob. not an oil change) that requires them to check the OBD port, they will immediately see you don't have the stock PCM load. What will they do? Who knows - maybe that gets noted in your "perminent record"
. In any case with failing MT82's left and right, I'm pretty sure I'll be in for some major warranty repairs at some point (at least a TSB on the tranny). I suspect the dealer would, at a minimum, decline to work on your "modified" car.
Personally, for the MINIMAL TRUE gains actually being seen, it doesn't seem worth the risk (but for auto owners maybe a diff. story). I suspect MOST of the "feel" differences - that "whole new car" claim - are mainly due to remapping of the TPS curve. If the tunes "tighten" it, you'd get a higher throttle command at a lower TPS value (pedal position), which would clearly change the driveability and feel. I'll bet a tune that does NOTHING other than that would get rave reviews (until somebody dyno'd it).
2011 GT Kona Blue with 401A Black+Cashmire - HID, Security, Brembo, 3.55, Comfort, Rear Camera, and Glass Roof.
Mods: Steeda Sport Springs and HD mount (2011+ style), Koni "Yellows", UMI roto-joint adj. PHB - oh, and one big scratch in a BBP wheel!