APR Tuned Race gas file and EuroCode Headers prove a potent combination 122WHP!!!!!!

[David@EuroCode]

So today we put our in house B8 S4 back on the dyno to see what shes got on race gas. 122WHP and 90WTQ increase over stock, holy smokes Batman! This machine moves like a bat out of hell. Many thanks goes out to the folks @ APR for an abseloutly amazing tune!!!!! Below are the new dyno runs as well as the 91oct for comparo, enjoy!



Mods are as follows, APR Race Tune, EC Headers, Stock catback, Stock Airbox/Filter & Stock pulley. We used VP MS109 (105oct) unleaded fuel, the APR tune is optimized for 100oct fuel.


Of course our headers!


Stock vs APR Tune on 91oct (car stock otherwise)

67 Wheel Horsepower and 47 Wheel Torque increase at 7000RPM



Stock vs APR Tune on 91oct and EuroCode Tuning Long Tube Headers (Stock cat back and stock air filter/box)

88 Wheel Horsepower and 66 Wheel Torque increase at 7000RPM



Stock vs APR Race Tune for 100oct and EuroCode Tuning Long Tube Headers (Stock cat back and stock air filter/box)

122 Wheel Horsepower and 90 Wheel Torque increase at 7000RPM




Wish this car was with me last week when I was at the Nürburgring.



Click here for more info about our headers

[zerinA4]

Bravo guys, bravo! What's the labor like? I'm assuming engine has to come out of the car? How many hours?

[NickS]

lol... that's awesome! :)

[jeffc31337]

lol... that's awesome! :)

Wowza. Add in a catback and intake and you might be at 400awhp. That's no small feat for bolt ons!

Impressie area under the curve gains as well on the 91 tune + headers!

[Voltrons_Head]

Now all you need is a ringer of a driver to send it down the track. ;-)

[legbend]

Love to see/hear what it sounds like.

[Keith@APR]

11's?

[David@EuroCode]

Love to see/hear what it sounds like.

Coming up by Monday!

[David@EuroCode]

11's?

Du bist verrückt!

[madmadS4]

I'm loving the 2nd and 3rd torque curves.... thats just sick

[primetime]

Now all you need is a ringer of a driver to send it down the track. ;-)

Yeah! Looking forward to those results.... So tempted to order these.... Sigh....

[primetime]

Du bist verrückt!

LOL! Nein, wir sind nicht verrückt!

[madmadS4]

Yeah! Looking forward to those results.... So tempted to order these.... Sigh....

So you won't pass emissions right? Isn't that a huge pain.. or risk.. or both?

[David@EuroCode]

LOL! Nein, wir sind nicht verrüc
kt!

wie wir später sehen werden. :)

[David@EuroCode]

So you won't pass emissions right? Isn't that a huge pain.. or risk.. or both?

Our car passed the CA sniffer test. ;)

[madmadS4]

Our car passed the CA sniffer test. ;)

Damn now I gotta spend more money. ;)

[L0U]

that is a header bolted up to a cat back...only there is no cat...lol

[Runge]

"me wants S4 even more"

[David@EuroCode]

Bravo guys, bravo! What's the labor like? I'm assuming engine has to come out of the car? How many hours?

Thank you Sir!

Yes, the motor does need to be extracted. The whole front end including the head lights stay on. It’s actually quite a joy to pull the motor in these cars, we are now comfortably installing the headers in under 7 hours. It can be done quicker as the motor is out in about two hours, but we like to take our time.

[CBRmatt600]

Wow. It looks like the B8 is going to be a serious contender to the B5.

[Arin@APR]

Holy smokes! Tear it up at the track Dave!

[David@EuroCode]

Holy smokes! Tear it up at the track Dave!

We shall try, it might rain so they might shut it down. I'm gonna send you the raw files, so you can put it on the same graph as your race run. Happy Friday!

[madmadS4]

The B8 spreadsheet is updated for '7 hrs of labor'. Also included the dyno chart.

I'd prefer a pure dyno though (no APR). It should be just stock vs added headers.

[David@EuroCode]

The B8 spreadsheet is updated for '7 hrs of labor'. Also included the dyno chart.

I'd prefer a pure dyno though (no APR). It should be just stock vs added headers.

Thanks, ask and you shall recive. :)

The gains are even greater with a bone stock car, 30 horse power, and 23 ft/lb's torque to the wheels over stock.

[primetime]

Few questions if I may....

6-speed car, correct?
I assume these will fit a DSG car?
What will we need to do with the o2 sensors? Is you car throwing a CEL? Do you anticipate it to if it is not?
No coating on these correct?
I asume they include hardware for installation? IE gaskets, bolts, etc....
Can you show some pics of the stock logs and cats please?

Looking forward to sound clips.... Fortunately, in Ohio I can get collectors plates and not have emissions check but I don't want CEL's and too loud of a car....

My prediction = 11.8 at 117-118 Add a catback and intake = 11.6 at 119-121 Best of luck.... Oh and again very nice work! Real close to becoming a customer.....

[Zed 2.0]

Fortunately, in Ohio I can get collectors plates and not have emissions check but I don't want CEL's and too loud of a car....

On a 2011 Audi? Good luck with that.

[primetime]

On a 2011 Audi? Good luck with that.

I don't need luck, it's a fact Zed.... Collector are not classic.... The only requirement is that you have another titled car as a daily driver and some bs burecratic speak that they never check on.... Oh and they cost $5 more a year! LOL Trust me I run them on 2 cars already....

Here is the actual note on the Ohio BMV website.... I have never had to provide any documentation and have never been denied nor has my brother or several friends that run them on fairly new cars....

Due to a administrative ruling, vehicle models not listed in the above publications may be considered collector vehicles if the applicant obtains documentation from the manufacturer that the vehicle was in limited production, is in demand as a collectible vehicle at the time of application or a sizable investment can be proven.

If they ask for documentation I will get the production volume of 2010 S4's in the US and they will qualify.... Oh and I have a 2010 :)

[rktskicar]

I think you need to put up some numbers with 100 oct fuel to see true gain of headers over APR 100 oct tune.

Bruce

[David@EuroCode]

Few questions if I may....

6-speed car, correct?

Yes

I assume these will fit a DSG car?

I belive that the part numbers for the stock manifolds and cats are the same. We are assuming it should be a direct fit, but it has not been confirmed.

What will we need to do with the o2 sensors? Is you car throwing a CEL? Do you anticipate it to if it is not?

We supply two extension adaptors plug and play, with two bungs so that you can plug the sensors downstream. Our car has a CEL, and we are working with APR to have this fault eliminated through software. However we are working on downpipes with high flow cats downstream which would eliminate the CEL.

No coating on these correct?

No coating, but we can have it done for you at an additional cost, or you can source it yourself locally.

I asume they include hardware for installation? IE gaskets, bolts, etc....Can you show some pics of the stock logs and cats please??

Yes, gaskets and hardware is included. I'll try and get some pictures of the stock manifolds and cats soon.

Looking forward to sound clips.... Fortunately, in Ohio I can get collectors plates and not have emissions check but I don't want CEL's and too loud of a car....

They will be coming up shortly.... I have a friend in Toledo, and quite aware of your emission laws, you guys are lucky.
In my opinion the car isn’t loud at all, but we’ll let you be the judge once the clips are posted.

My prediction = 11.8 at 117-118 Add a catback and intake = 11.6 at 119-121 Best of luck.... Oh and again very nice work! Real close to becoming a customer.....

Couldn’t tell you about the times, but 11.8 would be fantastic, well have to wait and see. Not sure, but I don’t think an intake will yield much, but we will put the car back on the dyno on Monday with the APR RSC, I keep you guys posted. Thanks for the kind words!

[David@EuroCode]

On a 2011 Audi? Good luck with that.

In CA right now, its 10 years before you have to do your first emission testin. Applicable on 2010-UP cars so as long as you are the original owner.

[leviathan18]

have you tried to wrap this bad boys ?

I would wrap the whole exhaust

[bryzf1]

subscribed

[David@EuroCode]

I think you need to put up some numbers with 100 oct fuel to see true gain of headers over APR 100 oct tune.

Bruce

105oct fuel will not yield additional performance, unless additional tuning has been made above 100oct to take advantage of the fuels combustion characteristics. In some instances, you would actually loose performance not to mention inaccurate A/F readings. Stoic (stoichiometric) AF for MS109 is 13.4 where as the stock O2 on your car is calibrated for 14.7 on pump gas. Unless the car is in a state of detonation, you won’t yield additional performance.

If the vehicle was tuned to land in a state of detonation as a result of aggressive tuning, hardware protection would come into play, which would enrich the AF, and cause you to lose even more power. Now if additional ignition advance which has been put into place to complement the fuel is there, so will the gains. The APR tune was mapped to run on 100oct fuel, even if you ran C16, wont yield more power. It’s like putting 100oct in a car that was tuned for 91/93oct and expecting gains.

If that was the case, why would we even bother re-mapping the ECU for race fuel. If APR had overcompensated the ignition advance, which would cause the vehicle to control ignition, than 105oct would allow you to take advantage of the requested ignition and not retard ignition (turn back) to a certain extent. We run MS109 because its our fuel of choice, as it is both unleaded and specifically formulated for forced air induction. We have had great success with this fuel, and unless something else comes to market, we will always be putting this in vehicles that call for 100oct and are forced induction.

Hope this helps

[David@EuroCode]

have you tried to wrap this bad boys ?

I would wrap the whole exhaust

Next time we pull the motor on this car for and engine build, I think we will coat them.

[rktskicar]

105oct fuel will not yield additional performance, unless additional tuning has been made above 100oct to take advantage of the fuels combustion characteristics. In some instances, you would actually loose performance not to mention inaccurate A/F readings. Stoic (stoichiometric) AF for MS109 is 13.4 where as the stock O2 on your car is calibrated for 14.7 on pump gas. Unless the car is in a state of detonation, you won’t yield additional performance.

If the vehicle was tuned to land in a state of detonation as a result of aggressive tuning, hardware protection would come into play, which would enrich the AF, and cause you to lose even more power. Now if additional ignition advance which has been put into place to complement the fuel is there, so will the gains. The APR tune was mapped to run on 100oct fuel, even if you ran C16, wont yield more power. It’s like putting 100oct in a car that was tuned for 91/93oct and expecting gains.

If that was the case, why would we even bother re-mapping the ECU for race fuel. If APR had overcompensated the ignition advance, which would cause the vehicle to control ignition, than 105oct would allow you to take advantage of the requested ignition and not retard ignition (turn back) to a certain extent. We run MS109 because its our fuel of choice, as it is both unleaded and specifically formulated for forced air induction. We have had great success with this fuel, and unless something else comes to market, we will always be putting this in vehicles that call for 100oct and are forced induction.

Hope this helps

Just run it with 100 oct and report your results. Do not muddy the waters by running 105 oct. You certainaly could have run 100 oct instead.

Bruce

[Tracee]

Just run it with 100 oct and report your results. Do not muddy the waters by running 105 oct. You certainaly could have run 100 oct instead.

Bruce

Better yet, flash your own car and dyno it with 100 octane.

[richib86]

Better yet, flash your own car and dyno it with 100 octane.

+1

[David@EuroCode]

Just run it with 100 oct and report your results. Do not muddy the waters by running 105 oct. You certainaly could have run 100 oct instead.

Bruce

If we thought it would make a difference, we wouldn't bother posting the fuel used. There is no way for you to know if it was 100oct or not! No conspiracy here Sir!

[Un1k]

Better yet, flash your own car and dyno it with 100 octane.

I don't think Seattle has 100 oct

[Un1k]

Couldn’t tell you about the times, but 11.8 would be fantastic, well have to wait and see. Not sure, but I don’t think an intake will yield much, but we will put the car back on the dyno on Monday with the APR RSC, I keep you guys posted. Thanks for the kind words!

Can you guys please have the video before installing APR RSC (and possibly after RSC has fully broken in)? That exhaust is so raspy out of the box it'll be hard to tell what the headers do in terms of sound.