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      05-19-2015, 03:04 AM   #1
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GSR Technik N20/N26/N55 Tune Group Buy

Looks like we have achieved our minimum targets for our Bimmerpost member group buy. Here's the official pricing.

Pricing honored through the end of May:

N20/N26
Stage 1
Retail $999 - Bimmerpost Group Buy $699

Stage 2
Retail $1,299 - Bimmerpost Group Buy $999

N55
Stage 1
Retail $1,299 - Bimmerpost Group Buy $799

Stage 2
Retail $1,699 - Bimmerpost Group Buy $1,199

Does not include labor if GSR is removing/installing ECU. If you are interested but can't pull the trigger now you can put down a 50% deposit before June 1 and secure the group buy pricing.

Thanks all for reaching out to show level of interest. To confirm your intent to purchase please PM your car details, stage and email so we can follow up with you to answer any final questions and get payment information. If you wish to upgrade from Stage 1 to Stage 2 in the future you just pay the difference based on the above pricing.

PLEASE NOTE: For those N20/N26 auto cars, there is a current torque limit at or about 350 wtq. Typically cars with DP and 93 can exceed this on our Stage 2 tune. We are working to find the limit within the code but have yet to identify how the torque limit is implemented. We recommend N20/N26 auto customers who run on 93 to stick with Stage 1 until we have resolution of the torque limit. There is no such limit on manual cars.

Thanks again for the community support.

Nick...
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      05-19-2015, 09:01 AM   #2
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Couple of questions:
1) Have to pull out ECU and send it over to you guys right?
2) What is the downtime?
3) If new software is flashed on to the vehicle while in service, will it screw around with the ECU tune?
4) Will there be future maps or updates?
5) How can we revert back to stock?
6) Is there an increased top speed?
7) is it E85 capable?

I assume that with this tune, our piping and cooling needs to be worked on (charge pipes, intercooler) otherwise they will be stressed.
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      05-19-2015, 10:14 AM   #3
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Quote:
Originally Posted by bahasad View Post
Couple of questions:
1) Have to pull out ECU and send it over to you guys right?
2) What is the downtime?
3) If new software is flashed on to the vehicle while in service, will it screw around with the ECU tune?
4) Will there be future maps or updates?
5) How can we revert back to stock?
6) Is there an increased top speed?
7) is it E85 capable?

I assume that with this tune, our piping and cooling needs to be worked on (charge pipes, intercooler) otherwise they will be stressed.
#3, #4, #5 all good questions.
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      05-19-2015, 12:22 PM   #4
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whats the achieved torque on a stage 2 with a N20 manual transmission?
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      05-19-2015, 12:54 PM   #5
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Quote:
Originally Posted by bahasad View Post
Couple of questions:
1) Have to pull out ECU and send it over to you guys right?
2) What is the downtime?
3) If new software is flashed on to the vehicle while in service, will it screw around with the ECU tune?
4) Will there be future maps or updates?
5) How can we revert back to stock?
6) Is there an increased top speed?
7) is it/will it be E85 capable?

I assume that with this tune, our piping and cooling needs to be worked on (charge pipes, intercooler) otherwise they will be stressed.
#3, #4 and #7 for me.....
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      05-19-2015, 01:14 PM   #6
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Where are you guys located? I'm in Orange County so if you guys could pm me a quote for install and removal I would appreciate it!
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      05-19-2015, 01:21 PM   #7
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Quote:
Originally Posted by bou707 View Post
whats the achieved torque on a stage 2 with a N20 manual transmission?
We are seeing ranges of 330 to 360 wtq based on different dynos and runs on 91.
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      05-19-2015, 01:26 PM   #8
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Quote:
Originally Posted by cmonter3323 View Post
Where are you guys located? I'm in Orange County so if you guys could pm me a quote for install and removal I would appreciate it!
We are in Anaheim across from Disneyland. Address on our website. For N20/N26 labor is $60, N55 $120 to remove and re-install ECU.
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      05-19-2015, 01:56 PM   #9
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Answers in line below.

Quote:
Originally Posted by bahasad View Post
Couple of questions:
1) Have to pull out ECU and send it over to you guys right?

>> Yes

2) What is the downtime?

>> We turnaround same day 90% of the time.

3) If new software is flashed on to the vehicle while in service, will it screw around with the ECU tune?

If they do a full re-flash that is possible. If they just do a module update more than likely not because they don't typically update the things we are touching. If this does happen we will re-flash free. We only update the binary we need to because we do all tuning in house. Other "tuners" that just have a file and load that file will copy over stuff. Since we have a tuner in-house (Matt) we extract your file out of the ECU, make the changes by hand and then re-install that file. If you are going to another tuner you should ask them if they are simply loading a file or if the our extracting your file and making changes to that file. Big difference if your car has had any dealer updates.

4) Will there be future maps or updates?

We are always evolving. Sometime in the future, once we think there is enough change to be meaningful we will offer release upgrades to existing tunes.

5) How can we revert back to stock?

For any customer we will revert flash back to stock version that was on the ECU when we did the tune for free.

6) Is there an increased top speed?

We eliminate top speed limiter on all our tunes.

7) is it E85 capable?

This is a longer conversation for Matt (our Chief Tuning Guru). I will get him to respond.

I assume that with this tune, our piping and cooling needs to be worked on (charge pipes, intercooler) otherwise they will be stressed.
Stock charge pipes will last for a bit but will more than likely ultimately fail. Upgraded intercooler will cool charge air and you should see a bump in hp/tq with possibly a bit smoother power delivery.
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      05-19-2015, 05:49 PM   #10
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Quote:
Originally Posted by bahasad View Post
Couple of questions:

7) is it E85 capable?
At this point you would need to run piggyback on top of our tune to get full benefit from ethanol blends.

Nick...
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      05-20-2015, 10:03 AM   #11
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Question

Quote:
Originally Posted by GSR Autosport View Post
Answers in line below.

Stock charge pipes will last for a bit but will more than likely ultimately fail. Upgraded intercooler will cool charge air and you should see a bump in hp/tq with possibly a bit smoother power delivery.

The stock charge pipe needs to be upgraded even for the stage 1 setup?
Wondering about this, because I have a 328i (BONE STOCK) N26, w/ automatic transmission.
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      05-20-2015, 11:10 AM   #12
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Quote:
Originally Posted by jamoka3 View Post
The stock charge pipe needs to be upgraded even for the stage 1 setup?
Wondering about this, because I have a 328i (BONE STOCK) N26, w/ automatic transmission.
Honestly it's hard to say 100%. We still have stock charge pipes on our 228 running Stage 2 because we are testing for failure as part of the homologation process to enter the car into the Pirelli World Challenge pro series and they are still running fine. Some people have had issues. I would say 95% you won't have issue with Stage 1.
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      05-20-2015, 12:22 PM   #13
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Quote:
Originally Posted by jamoka3 View Post
The stock charge pipe needs to be upgraded even for the stage 1 setup?
Wondering about this, because I have a 328i (BONE STOCK) N26, w/ automatic transmission.
Even if it is fine, you should replace it anyway. It is a constraining part when pushing this much extra power/torque
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      05-20-2015, 12:42 PM   #14
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Is there a product page for these tunes? I recall the intro thread but not the details. Stage 2 vs stage 1 is mainly what I'm wondering - required supporting modifications, power difference etc.
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      05-20-2015, 12:54 PM   #15
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pm me with payment options and info, wanting stage 1 for auto please. going to pick up a injen intake from one of our sponsors and keep my mpe. I think its the best setup for a daily driver with safe engine power and sound.

thanks for all the input from the forums
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      05-20-2015, 02:36 PM   #16
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Quote:
Originally Posted by S4NoMore View Post
Is there a product page for these tunes? I recall the intro thread but not the details. Stage 2 vs stage 1 is mainly what I'm wondering - required supporting modifications, power difference etc.
We're trying to get them up on our online store ASAP but here's the best thread for the 28 cars.

http://www.2addicts.com/forums/showthread.php?t=1119949

Nick...
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      05-20-2015, 07:32 PM   #17
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Quote:
Originally Posted by GSR Autosport View Post
At this point you would need to run piggyback on top of our tune to get full benefit from ethanol blends.

Nick...

For the 320i, would you say that with the E85 piggyback tune and your ECU flash tune, it's still n the "safe side"? Or will that be pushing it close to the limit?
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      05-20-2015, 07:49 PM   #18
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Quote:
Originally Posted by F30 Epal View Post
For the 320i, would you say that with the E85 piggyback tune and your ECU flash tune, it's still n the "safe side"? Or will that be pushing it close to the limit?
It would interesting to see how much more you would get with running E85 because I imagine you are starting to get into fuel delivery volume limitations even though you are getting some higher octane. We need to test that one of these days.

I'm guessing you would end up somewhere around 300 wtq so you should be good. +350 wtq is where things start to get a little concerning.

Nick...
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      05-21-2015, 09:00 AM   #19
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Any ideas what happens above 350wtq? From my understanding the n55 Runs the same A8 as the N20/26, so would it be a matter of Justin's have to code or flash the tcu?
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      05-21-2015, 09:19 AM   #20
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Sounds interesting. I may have missed it in other threads, but what do the dyno plots look like between Stage 1 and 2 versus stock for the 28i N20 engine?

Pricing include shipping back to where ever it was sent from, say Canada?

Edit: Never mind, found some charts. For those interested:

Stage 1:


Stage 2:
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      05-21-2015, 12:46 PM   #21
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Quote:
Originally Posted by :ninja: View Post
Any ideas what happens above 350wtq? From my understanding the n55 Runs the same A8 as the N20/26, so would it be a matter of Justin's have to code or flash the tcu?
It looks like on the 28 AT cars there is a variable that is cutting throttle electronically. People are reporting "misfires" but we are not seeing that. It's just closing the throttle. We don't have a complete set of map definitions so we are hunting around. There is not such limit on the manual cars so it seems like it is just a matter of finding it in the binary.

Nick...
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      05-21-2015, 12:47 PM   #22
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Quote:
Originally Posted by Jimminez View Post
Sounds interesting.

Pricing include shipping back to where ever it was sent from, say Canada?
The group buy pricing does not include shipping. Just not enough margin to suck up shipping costs.
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