Wildmanmxc

Thinking about the GIAC tune, stage 2, what is your day to day gas mileage...I know I shouldn't worry about it but just curious.

Eric_C

A piggyback would get me a tune in a heart beat.

Even if it was 80-85 percent of what a pure tune would get. The only reason is I do not want the TD1 hassle.

safetywork

This is my first forced induced car in a LONG time (my last forced induced car was a SAAB). I'm just amazed at the difference a software flash does to my car! But these modern cars are expensive to repair, my personal opinion is to wait till the warranty has expired.

Now go out and enjoy your car, drive it like you stole it and when you pass the 50k miles....get flash of your choice.

lenf

If you asking this question then you already set your mind. The question is how long you going to last before tune your car.

bandersen

APR Stage II with pulley, AWE exhaust. Do it. You'll wear the manual tranny out a little faster...but, life is short. It's a hell of a quicker ride. Of course...I need to get it de-flashed so that I can get the fuel rail recall fix..but, oh well. Did I say, life is short??

AerotusX

Funny that I have been asking myself this exact same question for my 2015 S4 w/8800 miles. I don't want to void my warranty either, so I'm thinking of adding bolt-ons first (ie. exhaust, intake, suspension, etc).

Please do update if you pull the trigger to do the APR stage II. I'm interested in your experience after some months.

Drewalk

I have a 2011 S4 Imola Yellow, prestige, ADS, 6 MT, just past the 100,000 mile mark and my extended warranty is now up. I have had no issues with this car, no check engine lights, nothing!. It burns no oil too. My boss has a TTrs APR stage 3, and is having issues with passing emissions and check engine lights. How much I want to do an APR Stage 2, if I start having issues, the tune shop would be a major hassle getting to for it is a far distance to get to. Has anyone with a stage 2 run into check engine lights or other issues after getting the upgrade?

sfg57

I decided to try the ChipWerks piggyback tune. I installed it about three weeks ago and it works great. I'm sure that it is not as good as a complete flash or not even close to a phase 2 with a pulley. That may come later in life. But for now the piggyback does what I want it to do with a noticeable increase in power after 3500 RPM. When the time comes for service I will remove it prior to visiting the dealer. I did a lot of research and based on my location where there is good gas available and at sea level it is great.

AerotusX

Any negative side-effect so far with the Chipwerke? Such as jerkiness or daily drivability?

Emwonk

I continue to be interested in this, but feel the technology does not have enough in-field customer experience.

It also seems experiences have been mixed. I have four impressions of that collective experience so far:

-vastly lower cost compared to alternatives.

- Nice acceleration improvement for the price

-easy to install and remove.

- allegedly no detectable codes.

– throttle response issues.

– Check engine light issues

When I got the Juicebox for my BMW the only impression I could get about it was that it was dependable and effective and no hassles at a low-cost.

The only issues with the Juicebox were installation confusion, or people needing help with advanced ethanol, racing, water injection or other applications.

Does anyone here have one installed with a manual transmission S4?

I want this, but it doesn't feel comfortable yet.