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I am considering purchasing a 2015 Audi A3 2.0 TFSI. Does anyone own a 2015 Audi A3 2.0 TFSI and have the APR Stage 1 ECU Upgrade installed? If so, how has the car handled the extreme increases in HP and TQ? APR claims the Stage 1 ECU upgrade with 91 octane takes stock 220 HP / 258 TQ all the way to 305 HP / 371 TQ. I am a little concerned that the factory dual clutch can handle such increases. I mean that's greater than 40% increase in HP and TQ and stock 0 to 60 from 5.8 seconds to under 4.5 seconds. I'm also concerned about the stock brakes that come on the A3. Thoughts?
 

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Discussion Starter · #2 ·
Interesting Analysis

By the way, the 2015 Audi A3 with the APR Stage 1 ECU Upgrade is exactly as fast as a 2015 Audi S4/S5 with the APR Stage 1 ECU Upgrade. Please someone tell me this isn't too good to be true b/c it's failing the sniff test.
 

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I am considering purchasing a 2015 Audi A3 2.0 TFSI. Does anyone own a 2015 Audi A3 2.0 TFSI and have the APR Stage 1 ECU Upgrade installed? If so, how has the car handled the extreme increases in HP and TQ? APR claims the Stage 1 ECU upgrade with 91 octane takes stock 220 HP / 258 TQ all the way to 305 HP / 371 TQ. I am a little concerned that the factory dual clutch can handle such increases. I mean that's greater than 40% increase in HP and TQ and stock 0 to 60 from 5.8 seconds to under 4.5 seconds. I'm also concerned about the stock brakes that come on the A3. Thoughts?
APR offers "special software designed to deliver the same peak horsepower with a cap on low end torque to reduce or eliminate slipping. These specific files are available with various torque caps set lower than the standard Stage I ECU Upgrade." I might go for that because I am chicken about my DSG clutches.

http://www.goapr.com/products/ecu_upgrade_20tsi_gen3_mqb.html

Braking power is a function of velocity. Just because your car is "chipped" does not mean you have to drive it faster. If you do, perhaps upgrade brakes are in order. Two potential options are the S3 brakes or the bigger brakes offered on the GTI with performance pack.
 

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By the way, the 2015 Audi A3 with the APR Stage 1 ECU Upgrade is exactly as fast as a 2015 Audi S4/S5 with the APR Stage 1 ECU Upgrade. Please someone tell me this isn't too good to be true b/c it's failing the sniff test.
Fast is a measure of velocity, as such I would imagine that both the A3 and the S4/S5 have the same speed governor. If you mean quick, a measure of acceleration, well then that is determined by more than just raw power.

0-60 times by the way, are a near useless measure of performance. To give you an example, say car A peaks at 60 mph in 2nd gear and car B peaks at 59, needing 3rd gear to hit 60. They both go from 0-59 in 5 seconds. They both go 0-61 in 5.5, but car A goes 0-60 in 5.1 to car B's 5.4. That gear change added time, but didn't add velocity. If you don't believe me about 0-60 being a near useless measure of performance, name me one race series where the winner is the guy who can hit a certain velocity the quickest.
 

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APR offers "special software designed to deliver the same peak horsepower with a cap on low end torque to reduce or eliminate slipping. These specific files are available with various torque caps set lower than the standard Stage I ECU Upgrade." I might go for that because I am chicken about my DSG clutches.

http://www.goapr.com/products/ecu_upgrade_20tsi_gen3_mqb.html

[B]Braking power is a function of velocity. Just because your car is "chipped" does not mean you have to drive it faster. If you do, perhaps upgrade brakes are in order. Two potential options are the S3 brakes or the bigger brakes offered on the GTI with performance pack.
Exactly!

Or you can always buy better pads, brake lines and brake fluid, for your daily driving needs.

If you like to track, then an upgraded brake kit is a must... if not, I don't really see the need.
 

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ANd I don't think you need to worry about the dsg not handling that amount of torque...

You can dig on the mkv forum and find out that there are several cars running this torque ratings with no problem.

Even if you wanted to exceed 400 lb/ft unitronic can flash the dsg and increase the clutches clamping force, avoiding slippage.

DSG dq250 it's been on the market for a while now, and it had proven to be reliable.

My 2 cents...
 

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And another thing, the S4 is supercharged. The A3 is turbocharged. Chip tuning a turbo to make more power is easy; you just tell it to take some of that excess air it was venting to the atmosphere and route it to the engine instead (and yes, changing the fueling to match). There isn't a whole lot of excess air with a supercharger. If you want more, you have to - at the very least - change how fast the supercharger spins, i.e. change the pulley.
 

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I am considering purchasing a 2015 Audi A3 2.0 TFSI. Does anyone own a 2015 Audi A3 2.0 TFSI and have the APR Stage 1 ECU Upgrade installed? If so, how has the car handled the extreme increases in HP and TQ? APR claims the Stage 1 ECU upgrade with 91 octane takes stock 220 HP / 258 TQ all the way to 305 HP / 371 TQ. I am a little concerned that the factory dual clutch can handle such increases. I mean that's greater than 40% increase in HP and TQ and stock 0 to 60 from 5.8 seconds to under 4.5 seconds. I'm also concerned about the stock brakes that come on the A3. Thoughts?
The DSG has been pretty amazing in handling power increases. Luckily, as the torque coming out of the engine increases, it increases the torque applied to the DSG hydraulic pump, causing hydraulic pressures to rise and provide more clamping force between the clutches. (At least, this is how it was explained to me..) There's obviously a limit to this, but there are cars with the DSG making ~375 hp on the stock DSG with no issues. I saw one Wednesday, actually, with drag radials on, at the drag strip, using race fuel, with a K04 upgrade on his EA888 gen 1 TSI and DQ250 DSG.

People have more issues with the manuals, but that seems to differ from one driver to another...
 

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I am considering purchasing a 2015 Audi A3 2.0 TFSI. Does anyone own a 2015 Audi A3 2.0 TFSI and have the APR Stage 1 ECU Upgrade installed? If so, how has the car handled the extreme increases in HP and TQ? APR claims the Stage 1 ECU upgrade with 91 octane takes stock 220 HP / 258 TQ all the way to 305 HP / 371 TQ. I am a little concerned that the factory dual clutch can handle such increases. I mean that's greater than 40% increase in HP and TQ and stock 0 to 60 from 5.8 seconds to under 4.5 seconds. I'm also concerned about the stock brakes that come on the A3. Thoughts?
I've had the APR STG 1 installed on my '15 A3 2.0 for a month and half (not that long) and no issues so far... Huge difference from stock.
 

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Some of y'all act like APR is the only tuning company that exist. :sly:



Why not look at other companies such as Unitronic, Revo, or GIAC? GIAC was the first company to even provide tunes for the VAG family and I would trust them over APR who seems to rush product development. On top of that, APR is now under new management due to poor financial decisions and we won't know what the future outcome
of that will be.

Not trying to hate on APR or anything, I just wish people would compare and contrast different tuning companies and their product offerings before just blindly saying "Go APR". :facepalm:
 

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Not trying to hate on APR or anything
It just comes naturally?

I just wish people would compare and contrast different tuning companies and their product offerings before just blindly saying "Go APR". :facepalm:
Who has said that? The OP specifically asked about APR's tune. Why would anyone - except trolls - chime in with, "Well, I know you asked about APR, but fark them. Go GIAC."

And how do you want someone to "compare and contrast different tuning companies and their product offerings" as it relates to the 2015 A3? Are you suggesting that there are that many people out there who have had two or more of GIAC's, APR's, REVO's and Unitronic's tunes on their 2015 A3. Because unless you find that person, all you're saying is that we should magazine race and declare a winner.

By the way:

GIAC - lists software for the 2005-present A3 with either the 2.0 FSI or 2.0 TSI engine. The 2015 A3 has the 2.0 TFSI engine.
Unitronic - Unitronic’s 2.0 TSI Gen3 Performance Software for the MQB platforms will be available at H20 International, on-site at the show only. A full global release will ensue in the weeks following H20i for those who are unable to attend the event, through Unitronic’s Worldwide Authorized Dealer Network, along with more details and exciting data.
REVO - LIsts softwear for the "197bhp Petrol 2.0 TFSI" and the ""200bhp Petrol 2.0 TSI". The 2015 A3 2.0 has 220bhp.

So, the only show in town right now seems to be APR.
 

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Some of y'all act like APR is the only tuning company that exist. :sly:



Why not look at other companies such as Unitronic, Revo, or GIAC? GIAC was the first company to even provide tunes for the VAG family and I would trust them over APR who seems to rush product development. On top of that, APR is now under new management due to poor financial decisions and we won't know what the future outcome
of that will be.

Not trying to hate on APR or anything, I just wish people would compare and contrast different tuning companies and their product offerings before just blindly saying "Go APR". :facepalm:
APR tuned VW Racing's vehicles and sponsored the VW Racing Cup in the UK, and seems to have an intimate knowledge re: both the prior and the current generations of the ECUs in VW/Audi vehicles, as evidenced by being the first tuner to release programs for the current generation of transverse 2.0T and 1.8T engines.

Maybe I am too impressionable but the R&D related content on APR's website impresses me more than its competitors.

For the first generation 2.0T FSI engine APR offered the ability to switch between up to 4 programs via the cruise control stalk while both GIAC and Revo required a dongle (which costs additional $$) to be plugged into the OBD-II port to switch programs. The former seemed like a more elegant solution so I went with APR even though GIAC is located very close to where I live.
 

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2015 A3 with APR Stage One added

I am thrilled with the APR Stage One Upgrade. I also installed the APR Air intake upgrade. Power increase is evident in all gears and I have a heavy right foot.
No problems with the DSG and in sport mode and it feels like a rocket. Factory brakes feel adequate for this boost but the suspension may need a boost if you like to fly through the curves. I am considering a 25mm rear bar to start as I have done just the rear on many cars and it makes a world of difference. My fuel economy has also seen a significant boost since the stage one was installed.
My only problem is that I saw a Sepang Pearl S3 recently and am wondering if I should throw the sway bar money in the cookie jar and start saving for a modestly equipped S-3. My A3 was just south of 40K WITHOUT the B/O stereo and a modestly equipped S3 comes in at 47 even.. That would include, convenience group, B/O sound, driver side assist/rear camera, 19" wheel package with magnetic ride, more bolstered seats, better brakes and suspension, etc. The S3 is much better equipped to handle the 300+ HP and I am sure I would add an APR upgrade(s) to the S3. I wouldn't spend the money for factory navi again as my phone is more than adequate and the factory Navi pricing is ridiculous.
I think one must ask the question; if I buy a fairly loaded A3, 2.0 Quattro( most dealer stock is just south or north of 40K.)
If you continue to modify it you will approach a S3 Premium Plus in cost and still not have the performance features of the S3.
 

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'15 a3 tdi

Does anyone know of any ECU tunings for the 2015 A3 TDI? I've been searching and APR says they are working on it but I don't want to wait. LOL Any help is appreciated.
 
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