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Be weary of the Vitesse customer support -- I ended up having to return my unit (it felt un-natural at parking lot speeds with the manual transmission, very jerky, etc) and I could get no response to my first email. Ended up calling in, and then sending a second email before I could anyone to acknowledge my request for return. Following shipping the product back, I could once again get no response. I had to go through Paypal protection to secure my refund. Very disappointed in their customer support, especially considering how polite I was throughout the process.
Soler Performance released a new throttle controller recently for significantly cheaper -- Go take a look in the 'general section' of the C7 forum. There were some new posts about this today. Their customer service is top notch (A+), and I have to believe you'll be much happier.
Be weary of the Vitesse customer support -- I ended up having to return my unit (it felt un-natural at parking lot speeds with the manual transmission, very jerky, etc) and I could get no response to my first email. Ended up calling in, and then sending a second email before I could anyone to acknowledge my request for return. Following shipping the product back, I could once again get no response. I had to go through Paypal protection to secure my refund. Very disappointed in their customer support, especially considering how polite I was throughout the process.
Soler Performance released a new throttle controller recently for significantly cheaper -- Go take a look in the 'general section' of the C7 forum. There were some new posts about this today. Their customer service is top notch (A+), and I have to believe you'll be much happier.
Vitesse: I had one and it worked OK but occasional (and annoying) surging at low speed, so I quit using it. A few others have noted this (but not very many).
Sprint Booster: This is what I went to after Vitesse. No need to calibrate, and no problems. Very small unit is easy to hide. No problems at all.
Pedal Commander: Really nice looking unit, and you can change settings on your iPhone. A few CELs reported here and there.
Soler: Nice looking unit at a great price. If I did not already have a Sprint Booster I think I would have went with this one.
Additional thought: I am the type that plays around with settings a little and then leaves it on one setting. So I really don't care that much about the interface. If you like to tweak often, Pedal Commander might be the best option.
I like my Vitesse but as Pineapple pointed out Soler just came out with one. I'd purchase from Mike. He has a great rep given what he's done with TB's.
We offer one for the C7, and keep in mind, the C7 allows for the ability to actually adjust this pedal feel in the tune, so something like an i3 gets you a throttle response adjuster and a full tuner to add power, etc.
I use a pedal commander. super easy setup and has 36 adjustments that make it so you can find the sweet spot. Mine is bluetooth and works from an app on my phone. I turn it off when I park, and wait till the car is warmed up.before turning it on.
I've had a Vitesse but tried a Solar Engineering Throttle Body & it's a night and day difference. With a BMS intake filter (or another good one if you like) you'll notice a huge change in lower rpm throttle response and it flows a lot more air as well.
I only have a Manzo X-Pipe, Solar Throttle Body, BMS drop in Filter, and Stingray wheels on my 2014 Z51 with a tune & I pull consistently on stock A8 Z51's up to until about the very end of the quarter mile when they seem to start to move a bit better. On the street though it's much better to drive around even just from a stop.
Install is super easy as well, hardest part is just waiting.
Also, do not adjust the Vitesse controller sensitivity while the pedal is pressed. Take your foot off the pedal before changing the settings or you'll get the problems that Vitesse owners complain about.
Appreciate that but assuming I want to purchase one which company has the most reliable, least problems, best customer service, etc
Just installed a Soler TC today..... Easy to install, good instructions, Really big response improvement. Soler has great references...... Good Luck and be careful first time you step on the gas........