APR RS3 / TTRS 2.5 TFSI ECU Upgrade - Now Available

**Arin@APR** · 06-18-2018 07:49 AM

APR is pleased to present the ultimate engine control unit (ECU) upgrade for the 2.5T EA855 EVO (Gen 2) engine!

Product Page

APR’s ECU Upgrades are the best dollar-per-horsepower modification one can make to the 2.5T engine. The upgrades dramatically increase horsepower and torque, making for an exceptionally quicker and more exciting vehicle. This is made possible through APR’s optimization of the factory engine management system to take full advantage of the engine’s capabilities, without needing any end user adjustment. The software loads to the factory ECU through the OBD-II port, resulting in a clean and headache-free install. Optional features, such as APR's EMCS Program Switching and APR Mobile are available. Furthermore, for those looking for tuning with a limited powertrain warranty, APR Plus has you covered!

APR ECU Upgrade Stages

APR’s ECU Upgrades are available in multiple stages, supporting various octanes both with or without any hardware modifications. Specific software is available for use with a high flow downpipe exhaust system and drop-in turbocharger upgrades are coming soon. Each stage is fully compatible with an upgraded intake, intercooler, catback exhaust, or other minor bolt on modifications.

Each stage includes optimizations to the factory boost gauge making it react more quickly and corrections to the power and torque gauges to match the increased output. Furthermore, we’ve added left foot braking, removed the speed limiter, raised the rev-limiter and added a motorsport limiter, adjusted the factory exhaust crackle to protect the catalyst, optimized cold start, retuned the exhaust flap actuation for the best performance and sound in multiple modes, optimized high altitude mappings, retuned the throttle for better response, and completely optimized the driving experience for street and track use making for a much more enjoyable driving experience!

APR Plus ECU Upgrade with a Limited Powertrain Warranty

The APR Plus ECU Upgrade is the first step towards making more power, and it includes our limited powertrain warranty. This simple upgrade requies no engine hardware modifications, and produces 459 HP with 451 FT-LBS of torque. Gains as high as 66 HP and 88 FT-LBS of torque are available throughout the power band, making the vehicle exceptionally quicker in all scenarios. To learn more about APR Plus, please visit the APR Plus website.

APR Stage 1 ECU Upgrade

The APR Stage 1 ECU Upgrade is the next step towards making more power! This simple upgrade requires no engine hardware modifications, and produces 459-542 HP with 451-506 FT-LBS of torque, depending on octane. Gains as high as 66-132 HP and 88-146 FT-LBS of torque are available throughout the power band. To get more power, the vehicle can be outfitted with an upgraded intake, intercooler, catback exhaust and other small modifications without requiring any new modification to the ECU. Upgrading the small factory intercooler is highly recommended on this platform.

APR Stage 1 is available for 91 AKI, 93 AKI, 100 AKI, 104 AKI and E85 fuel grades in North America, and 95 RON, 98 RON, 102 RON, 104 RON, 108 RON and E85 fuel grades in the Rest of the World.

APR Stage 2 and Stage 3 ECU Upgrade are coming soon.

Dyno Testing

Please visit our Product Page for detailed dyno charts showing stock vs APR 91, 93, 100, 104 and E85 Performance Modes measured at the wheels, estimated at the crank, and the absolute gain over stock.

Extreme Testing

APR’s ECU Upgrade has been full tested for the better part of a year prior to a public release. This includes summer and winter weather testing on multiple continents, high and low altitude testing, extensive track testing at multiple road courses, extensive drag strip testing and extensive road and daily driving testing. APR’s test vehicles are full instrumented with multiple sensors, including pre and post intercooler temperature and pressure sensors, pre and post turbine temperature and backpressure sensors, pre and post catalyst temperature and pressure sensors, and multiple pressure sensors throughout the intake system. APR test vehicles have seen over 700 HP in various configurations, on the stock engine internals, and have set multiple world records, including 10.5 second stage 1 quarter mile passes, and 9 second stage 3 passes.

For more details, including included and optional features, Pricing, and more, please visit our Product Page.

**shurick** · 06-18-2018 08:23 AM

w00t!

**0000 RS5** · 06-18-2018 08:25 AM

Fantastic! Congrats on the release.

Questions related to APR Plus: Is program switching available with APR Plus? At least to stock flash? What about valet mode and security lock out, again for the APR Plus option?

**Arin@APR** · 06-18-2018 08:29 AM

APR Plus is a single program only - Stage 1 91 octane.

**Konrad** · 06-18-2018 08:31 AM

Whoa. Impressive numbers.

**speeddemon69** · 06-18-2018 08:54 AM

congrats! about. damn. time lol.

was waiting to see if it was worth the switch specially with that promo you got going on but on 93 its less than i thought.

what other features do you have implemented in the tune Arin? how's cold start? also what about the exhaust valves? any changes there? hardware coming soon? DSG tune?

**Arin@APR** · 06-18-2018 09:03 AM

Originally Posted by speeddemon69

was waiting to see if it was worth the switch specially with that promo you got going on but on 93 its less than i thought.

I have a lot of graphs coming in from dealers and customers. Thus far, everyone has dynoed higher than advertised. I will be sharing them.

Note - Temperature plays a HUGE roll here. So, if you dyno with a crummy fan, it's going to be less. We were very careful with IAT protection, on the dyno, and have it pull out power to protect the engine when it's abused on the dyno.

what other features do you have implemented in the tune Arin? how's cold start? also what about the exhaust valves? any changes there? hardware coming soon? DSG tune?

Each stage includes optimizations to the factory boost gauge making it react more quickly and corrections to the power and torque gauges to match the increased output. Furthermore, we’ve added left foot braking, removed the speed limiter, raised the rev-limiter and added a motorsport limiter, adjusted the factory exhaust crackle to protect the catalyst, optimized cold start, retuned the exhaust flap actuation for the best performance and sound in multiple modes, optimized high altitude mappings, retuned the throttle for better response, and completely optimized the driving experience for street and track use making for a much more enjoyable driving experience!

**Potatohead_RS3** · 06-18-2018 09:07 AM

Originally Posted by speeddemon69

congrats! about. damn. time lol.

was waiting to see if it was worth the switch specially with that promo you got going on but on 93 its less than i thought.

what other features do you have implemented in the tune Arin? how's cold start? also what about the exhaust valves? any changes there? hardware coming soon? DSG tune?

It's all in the OP

**speeddemon69** · 06-18-2018 09:09 AM

Originally Posted by Potatohead_RS3

It's all in the OP

Yeah just saw it now. Just woke up

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**speeddemon69** · 06-18-2018 09:11 AM

Originally Posted by Arin@APR

I have a lot of graphs coming in from dealers and customers. Thus far, everyone has dynoed higher than advertised. I will be sharing them.

Note - Temperature plays a HUGE roll here. So, if you dyno with a crummy fan, it's going to be less. We were very careful with IAT protection, on the dyno, and have it pull out power to protect the engine when it's abused on the dyno.

Each stage includes optimizations to the factory boost gauge making it react more quickly and corrections to the power and torque gauges to match the increased output. Furthermore, we’ve added left foot braking, removed the speed limiter, raised the rev-limiter and added a motorsport limiter, adjusted the factory exhaust crackle to protect the catalyst, optimized cold start, retuned the exhaust flap actuation for the best performance and sound in multiple modes, optimized high altitude mappings, retuned the throttle for better response, and completely optimized the driving experience for street and track use making for a much more enjoyable driving experience!

So to put it in basic language, cold start is smoother? And valves are more open?

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**0000 RS5** · 06-18-2018 09:11 AM

Originally Posted by Arin@APR

I have a lot of graphs coming in from dealers and customers. Thus far, everyone has dynoed higher than advertised. I will be sharing them.

Note - Temperature plays a HUGE roll here. So, if you dyno with a crummy fan, it's going to be less. We were very careful with IAT protection, on the dyno, and have it pull out power to protect the engine when it's abused on the dyno.

Each stage includes optimizations to the factory boost gauge making it react more quickly and corrections to the power and torque gauges to match the increased output. Furthermore, we’ve added left foot braking, removed the speed limiter, raised the rev-limiter and added a motorsport limiter, adjusted the factory exhaust crackle to protect the catalyst, optimized cold start, retuned the exhaust flap actuation for the best performance and sound in multiple modes, optimized high altitude mappings, retuned the throttle for better response, and completely optimized the driving experience for street and track use making for a much more enjoyable driving experience!

What is the motorsport limiter? And when you say the adjusted the factory exhaust crackle to protect the catalyst, is this less pops and bangs than stock?

**Arin@APR** · 06-18-2018 09:14 AM

Originally Posted by speeddemon69

So to put it in basic language, cold start is smoother? And valves are more open?

Most people would say cold start is pretty chaotic, and loud. It's much smoother in the morning. It's also fixed at altitude (you'll probably see an update from audi in the future similar).

Exhaust flaps now open up at the right time when you're going WOT and while driving aggressively. Better sound, better performance.

**Arin@APR** · 06-18-2018 09:15 AM

Originally Posted by 0000 RS5

What is the motorsport limiter?

Raised the limiter and it's a harder limiter like the R8.

And when you say the adjusted the factory exhaust crackle to protect the catalyst, is this less pops and bangs than stock?

It still has the pops and bangs, but we've made sure to implement loads of temperature protection. If you don't, you'll ruin your cats - even stock, but especially at these higher power levels. We've seen it.

**1FastS4.Com** · 06-18-2018 09:21 AM

Great job!

**QShip18** · 06-18-2018 09:23 AM

So how “limited” is the limited power train warranty exactly? Does it offer the same coverage as the Audi warranty?

**shurick** · 06-18-2018 09:26 AM

Arin, can you please provide Canadian delaers with price etc. I was told by one local dealer they emailed APR this morning asking for pricing info. They basically have the product but no prices.

**kashakrs3** · 06-18-2018 09:28 AM

Originally Posted by shurick

Arin, can you please provide Canadian delaers with price etc. I was told by one local dealer they emailed APR this morning asking for pricing info. They basically have the product but no prices.

Which dealer are you with? Both APS and K&H told me the same thing.

**Arin@APR** · 06-18-2018 09:29 AM

Originally Posted by QShip18

So how “limited” is the limited power train warranty exactly? Does it offer the same coverage as the Audi warranty?

Here's exactly what ours covers, and doesn't:

https://www.goaprplus.com/includes/d...ty_booklet.pdf

- - - Updated - - -

Originally Posted by shurick

Arin, can you please provide Canadian delaers with price etc. I was told by one local dealer they emailed APR this morning asking for pricing info. They basically have the product but no prices.

We provided them with pricing 2 weeks ago. I'l have our account reps reach back out.

**shurick** · 06-18-2018 09:32 AM

I called the one in Concord

**Arin@APR** · 06-18-2018 09:34 AM

I will make sure everyone is informed. Thank you.

**Arin@APR** · 06-18-2018 09:47 AM

Eurocode dynoed a customers car and went from 348 AWHP to 508 AWHP with an APR Stage 1 (E85) ECU Upgrade. All stock hardware. That's a bit more than advertised.

**jwil** · 06-18-2018 09:55 AM

Maybe a dumb question: does the tune affect all driving modes? Most of the time I just cruise around in Drive/Comfort mode when my fiancé is with me because she doesn’t like the aggression of Sport/Dynamic, so does tuning alter the behavior of the car in Drive/Comfort?

**Arin@APR** · 06-18-2018 09:59 AM

Sport is still more aggressive than drive.

**Pneub** · 06-18-2018 10:09 AM

What's the process and expense to convert the car to run on e85? Are there brands you recommend?

Also I live in an area that has e85 but I can't get it all the time. Can I switch over to a different tune if I run below e60 or is it e85 and nothing else once I've begun using it?

**shurick** · 06-18-2018 10:10 AM

Originally Posted by jwil

Maybe a dumb question: does the tune affect all driving modes? Most of the time I just cruise around in Drive/Comfort mode when my fiancé is with me because she doesn’t like the aggression of Sport/Dynamic, so does tuning alter the behavior of the car in Drive/Comfort?

Maybe time for a different fiance!! 😂

**shivaswrath** · 06-18-2018 10:11 AM

Warranty sounds really comprehensive...

**Burningcoals** · 06-18-2018 10:12 AM

Is launch control RPM raised? Did you mess with boost pressure? I noticed that the Eurocode car uses a 4K Launch control RPM. Any 0-60 launch control numbers on 93oct and e85?

I run 94oct 100% of the time its a e20-e30 blend. Can I use your 93oct file with this fuel type?

You mentioned different plugs with the e85 tune? Can I run e85 out of the gate stock safely or should I upgrade plugs?

**Potatohead_RS3** · 06-18-2018 10:26 AM

Originally Posted by shivaswrath

Warranty sounds really comprehensive...

I don't see anything about mileage or time though. I assume it mirrors the factory warranty?

**TK42ONE** · 06-18-2018 10:48 AM

Originally Posted by Potatohead_RS3

I don't see anything about mileage or time though. I assume it mirrors the factory warranty?

from the APR Plus webpage

"APR Plus is backed by a limited powertrain warranty that offers coverage through the duration of your original limited factory powertrain warranty!"

**jnervi3** · 06-18-2018 10:49 AM

Congrats Arin & team, can't wait to see what's in store for the rest of the RS3 catalog of parts!

**Arin@APR** · 06-18-2018 11:12 AM

Originally Posted by Pneub

What's the process and expense to convert the car to run on e85?

Fill up with E85.

Switch programs.

---

Now, that said, it's just like race fuel in that you want to make sure you have no pump fuel left in the lines. I'd drain the tank, fill up, and give it a few miles before switching to make sure all of the pump is out of the lines. Likewise, me, personally, I'd install an ethanol sensor and I would make sure I'm above E60 before switching over to the E85 tune.

Are there brands you recommend?

Whoever ives you the closest to E85 I suppose. We have 3 providers in town, and we typically use Mapco. Totally up to you though.

Also I live in an area that has e85 but I can't get it all the time. Can I switch over to a different tune if I run below e60 or is it e85 and nothing else once I've begun using it?

You'd probably have to be below 30% ethanol to not trim out and throw a fault code.

**Arin@APR** · 06-18-2018 11:14 AM

Originally Posted by Burningcoals

Is launch control RPM raised?

No. That's controlled by the TCU and will be apart of our TCU upgrade.

Did you mess with boost pressure?

Yes!

[quote]Any 0-60 launch control numbers on 93oct and e85?

I don't have any figures but I'm sure we'll see draggy times showing up soon.

I run 94oct 100% of the time its a e20-e30 blend. Can I use your 93oct file with this fuel type?

Most likely yes.

You mentioned different plugs with the e85 tune? Can I run e85 out of the gate stock safely or should I upgrade plugs?

I mention different plugs with all tunes. If you track your car (road course) or do extended 300 KPH bombs down the autobahn, cooler plugs are cheap insurance.

- - - Updated - - -

Originally Posted by Potatohead_RS3

I don't see anything about mileage or time though. I assume it mirrors the factory warranty?

We mirror the term limit of your factory limited powertrain warranty.

**Arin@APR** · 06-18-2018 11:38 AM

USP tests our software on the dyno and the street. Check it out:

**SpaTech** · 06-18-2018 11:40 AM

Not to stoke any competitor fires but for those thinking of switching from a competitors Stg1 tune to APR's it would be really great to see before / after dyno (same car, same day, same dyno) and / or numbers from Dragy ...

**Arin@APR** · 06-18-2018 11:41 AM

We're offering 25% off to anyone who wants to switch - deal is good till the end of the month.

Someone did it this morning. Picked up gains all across the powerband on pump.

Blue - APR
Green - Competitor
Red - Stock

**speeddemon69** · 06-18-2018 11:42 AM

Originally Posted by Arin@APR

We're offering 25% off to anyone who wants to switch - deal is good till the end of the month.

Sent from my iPhone using Tapatalk

**SpaTech** · 06-18-2018 11:56 AM

Originally Posted by Arin@APR

Someone did it this morning. Picked up gains all across the powerband on pump.

Ooh-La-La ... it comes on STRONG ...!

**QShip18** · 06-18-2018 12:44 PM

Originally Posted by shivaswrath

Warranty sounds really comprehensive...

Yeah I read the PDF. Price is steep but your really paying for the warranty coverage.

**Arin@APR** · 06-18-2018 12:50 PM

More results coming in!

A customer visited EcoTune in the UK and dynoed stock vs tuned.

They're using our Stage 1 98 ron software with 99 ron fuel. They've added an intake and intercooler.

The car laid down 406 HP / 396 FTLBS stock, and 502 HP / 512 FT-LBS modified.