engleg

If this is the case, it's too bad aftermarket tuners don't increase the redline closer to the 3.0t S4.

Hockenheim

how do we get this??

NABS4

APR Audi C7 A6 and A7 3.0 TFSI V6 ECU Upgrade

ninjajack

Although my 2014 A6 has yet to be tuned, I would expect the results similar to that when I had my 2010 S4 tuned using GIAC software.
The difference in performance was notable by 3000RPM but the majority of the efffects were felt from 5K up to 7K.

Since the A6 310 hp is the same motor with a slightly different ECU tune, I would expect the tune results to be similar.

The GIAC tune actually resulted in slightly better mileage I believe because of optimized spark/fuel curves, etc.
Only have 10K on new A6 so will probably wait for a bit before upgrading to APR/GIAC.

georgenyc

Would these after-market upgrades void factory warranties? What're the implications?

jjsC6

They would absolutely void a drivetrain warranty if you have a problem and the tune is detected.

snagitseven

These days, when your car is in for service, the tech usually has it "call home" to Audi central. If a power train mod is detected, it places a "TD1" flag on the car for the car's life. Also, a tech can enable the TD1 himself if a mod is found. Henceforth, if there is any issue that can be attributed to a mod, Audi will refuse to cover it under the manf. warranty. The Magnuson-Moss Warranty Act states that the manf. must determine and show that a warranty declined failure is a direct result of a non-factory part or unauthorized software change. (While a consumer can challenge and appeal a TD1 warranty refusal, it's not an easy road to a successful resolution). The Audi new car warranty booklet covers modifications and specifies their effect on coverage.

georgenyc

Sounds like not worth the pain, no? At least for me...

snagitseven

It's all a matter of risk tolerence vs. the desire for improved performance. Stasis was the only ECU manf. that had their own warranty to cover any engine failure caused by their products but they are apparently now out of business (which leaves their warranties who own their products in limbo). Other ECU manf. warranty only cover their own parts against defects but will not pay for any other repairs resulting from a failure.

Some here are willing to assume the additional warranty risk, many are not. Some will mod their new vehicle before the floor mats get dirty and others will wait for the warranty to run out. The majority of owners are content to enjoy what the factory provides and leave power train mods to the hobbyists.

jjsC6

Over the years I have been on all sides of those options. What I have found is that if all you are looking for is 20-30 hp, you quickly get used to it (and realize that it's not much). To be worthwhile, I think you need to be adding at least 25% more power. But the more power you add, the more risk there is of something going wrong.

Something going wrong on a small block Chevy engine can be somewhat easy to fix because they are pretty simple engines and they are everywhere. No biggie buying a new short block or finding components fairly cheap. But a German engine…..I'm thinking that would not be a cheap fix.