APR's ECU Upgrade Now Available for Facelifted C7.5 S6 and S7 4.0 TFSI!

[Arin@APR]

http://www.goapr.com/news/wp-content/uploads/2015/09/release-s6-s7-ecu-upgrade-lg.png (http://www.goapr.com/news/wp-content/uploads/2015/09/release-s6-s7-ecu-upgrade-lg-579x289.png)

APR is pleased to present the ultimate engine control unit (ECU) upgrade for the C7.5 Audi S6 and S7 4.0 TFSI V8. APR’s ECU upgrade is available in octane-specific variations, including and is conveniently flashed to the vehicle’s factory ECU through the OBD-II port without any physical modification to the factory ECU. APR’s EMCS functionality puts the control of the engine’s operation at your fingertips and allows for additional features and options to be installed to the OEM ECU.

The ECU’s MED 17 engine management system is responsible for proper operation of the engine during constantly changing environmental and load conditions. With built in compensational data for environmental variables and varying load conditions, the factory ECU is far more complex and intelligent than units found in other vehicle makes and marques.

APR's Calibration Engineers spent months calibrating the engine management system, including many hours of chassis dyno development. With a thorough understanding of the ECU’s torque structure, APR’s Calibration Engineers properly increased engine load to produce more power and torque across the entire power band. APR’s ECU Upgrade increases boost pressure, optimizes ignition timing, cam timing, lambda and more to produce higher output!

APR’s ECU Upgrades provides an excellent leap in horsepower and torque while retaining OEM knock control sensitivity and other built in safety features. This results in an exciting and powerful upgrade, optimized for various fuel grades found around the world!

http://www.goapr.com/includes/img/products/dyno/40tfsi_c75_s6s7/40tfsi_c75_s6s7_s0_vs_s1_93_cc.png
http://www.goapr.com/includes/img/products/dyno/40tfsi_c75_s6s7/40tfsi_c75_s6s7_s0_vs_s1_100_cc.png

More charts at the wheels and crank with other octanes available on our website. (http://www.goapr.com/products/ecu_upgrade_40tfsi_c75s6s7.html)

The APR Stage I ECU Upgrade gives you higher peak numbers of 574 HP/638 FT-LBS on 93 (R+M)/2 octane and up to 597 HP/668 FT-LBS on 100 (R+M)/2 octane race fuel! As much as 186 HP and 243 FT-LBS of torque are available through the power band! APR’s latest ECU Upgrade is fully loaded with APR’s EMCS Program Switching and is compatible with APR Mobile.

Application Guide:

Audi C7.5 S6 and S7 4.0 TFSI.
$1,499.99 - Fully loaded.

Product Page: http://www.goapr.com/products/ecu_upgrade_40tfsi_c75s6s7.html

[tonymission]

OK, is it possible to get this TODAY with the TCU? Will my Atlanta dealers be up to speed yet?

[chudiddy]

OK, is it possible to get this TODAY with the TCU? Will my Atlanta dealers be up to speed yet?

This, i'm off today and would like this done asap!!

[chudiddy]

Boom!!! Driving to Redline Speedworx as we speak!!!

[dogears]

Their numbers show 9hp more. They mistakenly swapped the TQ and HP numbers in the table.

The two motors are quite similar. Any differences can be attributed to either variances in the actual cars, conditions on the sate of testing, and whether the dyno was the same. Comparing a sample size of one is not conclusive.

[14S4GWM]

Wow, very nice #'s

[Arin@APR]

Even though the C7.5 is advertised at 444 HP -- 24 more than the C7 -- it actually makes 33 HP less!

I think you may be mixing up a few numbers. The C7.5 has a little more. What we saw was nearly the same power, stock, between the two, except it looks like the factory tune tapered torque a little bit later so it would have higher peak numbers. We didn't dyno back to back, so there will be some variance but that's basically the difference.

[Serpent]

Can my dealer send you the ecu to do the flash? Just because the car is at the dealer right now.

[GTS21]

So the C7 makes 33 more peak HP than the C7.5, stock for stock even though the C7.5 is advertised as having 24 more peak HP. Audi raised the advertised HP figures for the C7.5 but in reality the car actually makes less power. Like I said, if I were a C7.5 owner, I'd be livid!

http://www.goapr.com/products/ecu_upgrade_40tfsi_c75s6s7.html
http://www.goapr.com/products/ecu_upgrade_40tfsi_s6s7.html

How would you feel if you didn't get the LED matrix beam headlights???

[MileMan402]

Their numbers show 9hp more. They mistakenly swapped the TQ and HP numbers in the table.

The two motors are quite similar. Any differences can be attributed to either variances in the actual cars, conditions on the sate of testing, and whether the dyno was the same. Comparing a sample size of one is not conclusive.


Look at the advertised stock numbers for both:

C7 is advertised at 444 HP and 406 TQ
C7.5 is advertised at 420 HP and 406 TQ

Now look at the actual numbers for both as reported by APR:

C7 stock put down 480 HP and 451 TQ.
C7.5 stock put down 447 HP and 489 TQ.

So the C7 makes 33 more peak HP than the C7.5, stock for stock even though the C7.5 is advertised as having 24 more peak HP. Audi raised the advertised HP figures for the C7.5 but in reality the car actually makes less power. Like I said, if I were a C7.5 owner, I'd be livid!

http://www.goapr.com/products/ecu_upgrade_40tfsi_c75s6s7.html
http://www.goapr.com/products/ecu_upgrade_40tfsi_s6s7.html

You quoted dogears in your second response yet apparently failed to read/comprehend his post.

Look at the graphs that APR posted then read the table again. You will notice, as dogears stated, that the stock hp & tq numbers are mistakenly switched in the table.

[MileMan402]

How would you feel if you didn't get the LED matrix beam headlights???

hahahahahaha

[Arin@APR]

Now look at the actual numbers for both as reported by APR:

C7 stock put down 480 HP and 451 TQ.
C7.5 stock put down 447 HP and 489 TQ.


Typo. Look at the numbers on the graph. HP/TQ switched. Fixed now. Thanks for spotting that guys!

[tonymission]

My car is being taken to the tuner right now... just have to decide if it's worth doing the APR TCU tune also. I want my up-shifting exhaust pops back!!
Should I just have TCU flashed back to stock or do the APR TCU update??


Like I said, if I were a C7.5 owner, I'd be livid!

I didn't buy the car for these numbers, I bought it because it's just all around sick. So.....

[amelen]

Boom!!! Driving to Redline Speedworx as we speak!!!

Btw, I highly highly recommend Redline Speedworx - great guys there, especially Pat. Let us know how the tune feels!

[chudiddy]

Btw, I highly highly recommend Redline Speedworx - great guys there, especially Pat. Let us know how the tune feels!

Yup, I had my 2014 done here and they were awesome. Currently in the shop as we speak.

[tonymission]

Anyone ever use Superior Autohaus in Alpharetta/Atlanta before?
Had one of my employees take the car over there today after I called this morning to confirm the tune. 45 minute drive later, my car is on its way back after my guy was told the tune wouldn't be available until Thursday. How is that possible? Now I'm not sure I even want to go back.

[tonymission]

Yup, I had my 2014 done here and they were awesome. Currently in the shop as we speak.

Hopefully you have better luck than I did.

[Arin@APR]

Anyone ever use Autohaus Performance in Alpharetta/Atlanta before?
Had one of my employees take the car over there today after I called this morning to confirm the tune. 45 minute drive later, my car is on its way back after my guy was told the tune wouldn't be available until Thursday. How is that possible? Now I'm not sure I even want to go back.

Strange. Can you call us? We don't see any activity from them on the servers. Perhaps someone there was on vacation till Thursday?

[tonymission]

Strange. Can you call us? We don't see any activity from them on the servers. Perhaps someone there was on vacation till Thursday?

I called and talked to the other Aaron. He just told me the software for my specific ECU might not be available to this dealer until Thursday. Not sure what information I was supposed to provide. I'm a little apprehensive to have the car taken back over there Thursday if there's still a chance they can't do anything to it.

[chudiddy]

Both tunes completed in a little over an hour. Initial impressions are extremely positive. I'll post a short video shortly. Couldn't be happier.

[tonymission]

Both tunes completed in a little over an hour. Initial impressions are extremely positive. I'll post a short video shortly. Couldn't be happier.

Meanwhile, I cry in my chair... lol

[Arin@APR]

I called and talked to the other Aaron. He just told me the software for my specific ECU might not be available to this dealer until Thursday. Not sure what information I was supposed to provide. I'm a little apprehensive to have the car taken back over there Thursday if there's still a chance they can't do anything to it.

Ok, I didn't speak to him. I'll see what's up!

[tonymission]

Ok, I didn't speak to him. I'll see what's up!

Your inbox is full, sir.

[chudiddy]

Got the APR ECU/TCU Tune done today. Initial impressions are extremely positive. I love how you can now see what gear you are in whether you are in "D" or "S" mode. Power delivery is silky smooth and the shifts are so precise. No harsh downshifts from what I can feel. I've driven about 100 miles so far and I absolutely love it. I'll post a more detailed review after I've driven her more. I have yet to try the launch control but excited to. I believe the ECU still needs to adapt to the tune so I expect full results by tomorrow. For now enjoy this short video that I took immediately leaving Redline Speedworx. I 100% recommend this shop. I had my 2014 tuned there and couldn't be happier. I literally have an APR dealer less than 20 miles from where I live but chose to drive 100 miles to see these guys. I was in and out in just over an hour.



www.youtube.com/watch?v=DIiMCDiNNvw

[kenny_l]

What exactly is a "C7.5" -- tried to search the forum for that string and it came back with zero results, though I know that's not true..

[Arin@APR]

The new face lifted cars with new headlights.

[kenny_l]

Do you mean model year 2016 cars? I'm unfamiliar with earlier models' headlights

[LINDW4LL]

Do you mean model year 2016 cars? I'm unfamiliar with earlier models' headlights
Yes...

[Arin@APR]

Do you mean model year 2016 cars? I'm unfamiliar with earlier models' headlights

Yes. Essentially ALL years are now supported.

[Barritia]

Few questions guys on this tune.

Just bought a 2016 S6

1.Will it get flagged when it's taken in for service or is there a way to reset ECU back to stock so they cant tell
2.Are there any installers for the tune in my area Roanoke, Va 24019
3.If it does flag on Audi's system will it also affect my extended warranty in the same way
4.Under whats conditions will it be flagged. All the time even on services or only when theres a major warranty issue.

Thanks guys.

[tonymission]

My car just got this ECU and TCU tune from Autobahn Performance in Norcross, GA.
One of my trusted helpers is about 15 minutes away from the office so I'll take it out for lunch and hopefully be able to report back some butt dyno impressions. :D

[CanuckRS]

Few questions guys on this tune.
Just bought a 2016 S6
1.Will it get flagged when it's taken in for service or is there a way to reset ECU back to stock so they cant tell
2.Are there any installers for the tune in my area Roanoke, Va 24019
3.If it does flag on Audi's system will it also affect my extended warranty in the same way
4.Under whats conditions will it be flagged. All the time even on services or only when theres a major warranty issue.
Thanks guys.

Simple answer. Assume the modification WILL be detected by Audi and any and all related warranty work may be voided, and up to you to pay for. If you're not comfortable with that, don't get the tune. there are many threads on here about tuning and warranty, best to do some research on your own about this topic as well.

[tonymission]

OK, car is back. Got both tunes done.
Initial impression is that the car is a monster. Can definitely hear the turbo now and 0-60 seems like it takes a half second.
Gear mapping seems much smoother, always knows where it needs to be for full power. Really no throttle delay from what I could tell. Seems very intelligent and adapts to aggressive driving.

[edit-Sean clarified this HUD question for me, thanks!!]

Now obviously I'm about $2800 into this with labor and taxes so there's the question of value, but that wasn't really a consideration for me. I don't plan on doing much more to the car besides really dialing in the stance but overall, I'm very happy with this after a bit of driving.

[Serpent]

I got my ECU tune done today, going to wait a while on the TCU. I am extremely happy with it. Pulls like a freight train. How the car should've come from factory IMO.

Those of you have already gotten it, did you also get the dongle?

[pandi]

I got my ECU tune done today, going to wait a while on the TCU. I am extremely happy with it. Pulls like a freight train. How the car should've come from factory IMO.

Those of you have already gotten it, did you also get the dongle?

Aren't freight trains slow? [:D]

[tonymission]

did you also get the dongle?

I did not.

[Arin@APR]

Aren't freight trains slow? [:D]

Haha, got me on a quick google tick:

Speed: ~60 MPH
HP: 4400 HP
TQ: 25,700 ft-lb.
Max RPM: 900

[Serpent]

Aren't freight trains slow? [:D]

lol, its because I only do the speed limit sir!

[Barritia]

Simple answer. Assume the modification WILL be detected by Audi and any and all related warranty work may be voided, and up to you to pay for. If you're not comfortable with that, don't get the tune. there are many threads on here about tuning and warranty, best to do some research on your own about this topic as well.

I heard that the APR program can be reset back to stock but that's why im here asking APR. My brothers a technician for Audi and warned me about the TD1 code but he's in the UK and don't know too much about it other than it's bad if it gets tagged as a TD1 car. I'm not expecting to have issues but knowing how unreliable Audi's can be and the cost of repair over here in the US i really don't want warranty issues denied over a ECU upgrade as more than likely the ECU will have nothing to do with the issue at hand.

I did see on some forums that APR say it can be reset back to stock but have no idea if this is a myth or true so be nice to here from APR first hand.

Would be nice to know what dealer they would recommend in this area too as im out in middle of no where.

[tonymission]

It can be reset and that's recommended before service, but if they really want to deny you, I'm sure they can dig in deeper and see increased boost numbers in the logs and put two and two together.

[Serpent]

You can also have the stock file in the car so you can always go back to stock. I have stock, valet, 93 and 100. You will always run the risk of TD1 when you modify your car though.

[tonymission]

You can also have the stock file in the car so you can always go back to stock. I have stock, valet, 93 and 100. You will always run the risk of TD1 when you modify your car though.

Is selecting "stock mode" the same as taking it back to the APR dealer to flash back to stock? I wouldn't think so or there wouldn't be so much talk about having to pay to flash/re-flash every time you take the car in for service.

[Serpent]

Is selecting "stock mode" the same as taking it back to the APR dealer to flash back to stock? I wouldn't think so or there wouldn't be so much talk about having to pay to flash/re-flash every time you take the car in for service.

Probably not. I also don't have to worry about flashing back to stock etc so I didn't ask.

Maybe Arin can shed some light?




Sent from my iPhone using Tapatalk

[Arin@APR]

Is selecting "stock mode" the same as taking it back to the APR dealer to flash back to stock?

Ok, to answer this question it really depends what you're asking.

When in stock mode the other programs are still loaded in the unused memory locations, as are our program switching routines. So, they are still physically loaded on the ECU. They aren't stored offline. If the binary was extracted and compared bit for bit, it would be different.

When you are in stock mode on this platform's stage 1, you're running the stock maps. Those stock maps are still in the ECU so our program switching routines just tells the ECU to run those maps when you're using stock mode.

If you're running a bigger turbo setup, typically stock mode is "stock like", with a few other tweaks to get it to run like it did when it was stock. Since hardware changed, the stock maps aren't calibrated correctly, so we have to do some tweaking on our end to make it run correctly.

Does that make sense and answer the question?

[tonymission]

Ok, to answer this question it really depends what you're asking.

When in stock mode the other programs are still loaded in the unused memory locations, as are our program switching routines. So, they are still physically loaded on the ECU. They aren't stored offline. If the binary was extracted and compared bit for bit, it would be different.

When you are in stock mode on this platform's stage 1, you're running the stock maps. Those stock maps are still in the ECU so our program switching routines just tells the ECU to run those maps when you're using stock mode.

If you're running a bigger turbo setup, typically stock mode is "stock like", with a few other tweaks to get it to run like it did when it was stock. Since hardware changed, the stock maps aren't calibrated correctly, so we have to do some tweaking on our end to make it run correctly.

Does that make sense and answer the question?

That makes perfect sense, thank you. So basically the re-flash wipes all remnants of the tune (besides log data) and there is nothing else stored in the ECU's memory besides what Audi originally put there.

[Arin@APR]

When you go back to stock, the factory binary is reinstalled on the ECU. I've heard the forums say "stored data logs" passed around for years, but I've never seen them.

[Barritia]

When you go back to stock, the factory binary is reinstalled on the ECU. I've heard the forums say "stored data logs" passed around for years, but I've never seen them.

Hey Arin so if i had the ECU reprogram done by you guys and then have an issue with the vehicle like a TSB or recall then i can send the ECU back to you guys to be reset back to normal so that it wouldn't flag as a TD1 car. If so How long is the turn around on that and whats involved with getting the tune back on there after the service.

Im hoping below this is available on the c7.5 as well Not confuses me that some things make it sound like dealer can reset it and some say has to go back to APR.

"APR’s patented DirectPort Programming is now available for the Simos 8.5 ECU as found in the Audi C7 A6 and A7! Any APR Dealer in the world, connected to the Internet, has direct access to APR’s latest ECU upgrades for loading directly over the vehicle's OBD-II port. This completely eliminates the need to remove and open the ECU for currently available files and can be uninstalled at any time without a trace!"

Thanks

[Brooklyn]

You would bring the car back to wherever you had it tuned, and they would plug it into their system and do this for you. I have not heard of anyone removing ECUs and sending them back to APR for this purpose. In fact, removing the ECU by itself might leave physical evidence that it's been removed from the car and potentially get you flagged. This isn't like the days of the B5 S4 where you could quickly and easily remove the ECU and even buy a tuned separate ECU from a tuner and swap back and forth. It's probably possible, but that's not how it's done with the C7 cars these days.

[Barritia]

Thanks man

whats the thing i have read about ECU having to be sent in to APR then or is that something totally different.

[Brooklyn]

Something different. That may have been how they did it early on, but now you just go to a local APR dealer, they plug a cable in, and upload the software to your ECU. The ECU never leaves the car.

[Barritia]

That's making it sound little easier now. So the same dealer can switch back to stock parameters if there's an issue or before service.

[B8ta]

To clear everything up, our shop recently had a customer with a 2015 VW GTI that was APR Stage 2 car, he blew the turbo a few weeks after the tune (MK7 GTIs are known to have some cars with faulty turbos from the factory) and we returned his car to stock program and removed his downpipe. He towed the car to the dealer, sat there for one week and all repairs were done under warranty. No tune was detected and he was a very happy customer. We reinstalled and reflashed to stage 2 on Friday last week and he has been extremely satisfied.

I hope this clears up the "flash back to stock" before dealer service questions.

Aadel
Elite Custom Performance
Houston, TX

[tonymission]

To clear everything up, our shop recently had a customer with a 2015 VW GTI that was APR Stage 2 car, he blew the turbo a few weeks after the tune (MK7 GTIs are known to have some cars with faulty turbos from the factory) and we returned his car to stock program and removed his downpipe. He towed the car to the dealer, sat there for one week and all repairs were done under warranty. No tune was detected and he was a very happy customer. We reinstalled and reflashed to stage 2 on Friday last week and he has been extremely satisfied.

I hope this clears up the "flash back to stock" before dealer service questions.

Aadel
Elite Custom Performance
Houston, TX

That makes me feel better. Thanks

[MileMan402]

I have a question that I don't think I have seen asked before.

Does the stock TCU notice the added power? Does it change torque distribution in any way that is different from how it would act with a stock ECU tune?

[Arin@APR]

Stock TCU is fine. APR TCU is just better. :)

[MileMan402]

Stock TCU is fine. APR TCU is just better. :)

Thanks, but that's not what I mean.

Maybe asking it in parts will clear it up:

1. Is the crown gear center diff electronically controlled at all for torque distribution front and rear?
2. Do the clutch packs in the rear diff recognize how much power is being sent through them and change the way they behave when more power is added from an ECU tune

So let's say two S6's lauch full throttle from a stop.
S6 #1 is 100% stock
S6 #2 is stock except for an APR ECU tune.

3. Will the torque distribution from the crown gear diff and between the clutches in the rear diff act the same between the two cars? (ceteris paribus)

The reason I ask is because an engineer at a company that develops another active AWD system (another non-brake based tq vectoring) said that any added power from a tune is diverted to the front wheels. Now in this case the AWD system is FWD based and does not have a center diff, however it made me wonder if the crown diff or rear sport diff in the Audi was able to recognize power and divert the added power differently (maybe even less efficiently?).

[Arin@APR]

It reacts the same way it did before the ECU/TCU flash. We don't change the strategy.

[MileMan402]

It reacts the same way it did before the ECU/TCU flash.
Ok thanks.


We don't change the strategy.

I realize you don't change it. My point was that GKN's new twinster AWD system is smart enough to recognize that more power/torque (tune) has been added and diverts torque differently (mainly to the front wheels to save the rear Twinster diff) without a any tuning done to the TCU or AWD system. The stock programming adapts without communicating with the ECU. This is from a forum member who claims to be an engineer at GKN.

[LINDW4LL]

The Crown Gear center diff is fully mechanical.


Sent from my iPhone 6 using Tapatalk

[MileMan402]

The Crown Gear center diff is fully mechanical.


Sent from my iPhone 6 using Tapatalk

Thanks Hayden

[Arin@APR]

For the heck of it, here are two random runs from our dyno. 2016 S7, Stock and Stage 1 100. Front & rear axle torque percentage of total, vs RPM.

http://www.goapr.com/news/wp-content/uploads/2015/10/s7-579x447.png