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      09-05-2013, 04:07 PM   #23
anvemi
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Cobb Accessport for N54

I had 2011 Z4 35is for 2 years and used accessport. What a blast it was

I have now moved to 2013 550i (couple days ago) and I have no need for Cobb anymore. It's ready to find new N54 engine

If someone is interested I will part it for $500. It has version 4.01 maps loaded.
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      09-14-2013, 08:59 AM   #24
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Quote:
Originally Posted by VailM3 View Post
Just to update. I have had my cobb Stage 1 aggressive on the 35is now for 2 weeks (no highway drive just yet)

Install: Overall it was as idiot proof as possible. There was a snag due to EU vin that had to get reset on my unit but that took a just a couple day to sort out. Afterwords it really was a plug and play. On a note it really does take about 12-14 minutes to complete so prepare to hang out in your car a while.

Experience: The two most noticeable things are the response and torque. Having it in Linear mode the engine acts more of an NA engine than a Turbo engine. You can feather the throttle and know the amount of power you are about to extract without this sudden shock of boost kicking in.

Torque. Now that the overboost function is on (depressing the gas pedal no longer increase the power, it only drops to the lower gear available relative to road speed) the 35is motor produce a mountain of torque that was never available till you floored it. having 400 foot pounds on tap without flooring changes the entire car.

Vail, Would you recommend? I've been going back and forth between Cobb and Ess as well for my 35is.

Thanks!!
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      09-14-2013, 12:25 PM   #25
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Quote:
Originally Posted by jts1981 View Post
Vail, Would you recommend? I've been going back and forth between Cobb and Ess as well for my 35is.

Thanks!!
Though I have not tried ESS, I am 100% happy with COBB and wouldnt go any other way.
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      09-15-2013, 01:50 AM   #26
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I've got the ESS and whilst it works well, I am EXTREMELY disappointed that they have NOT released an update to the 35is map since it's initial release a few years ago. Surely they must be some sort of optimization done??
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      09-15-2013, 04:33 AM   #27
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Quote:
Originally Posted by Gunzaro View Post
I've got the ESS and whilst it works well, I am EXTREMELY disappointed that they have NOT released an update to the 35is map since it's initial release a few years ago. Surely they must be some sort of optimization done??
one of the main reasons why i decided on COBB, is their service level and up to date maps. Not to mention 100% reversible and not vin-locked...that was a deal breaker.
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      09-16-2013, 04:24 AM   #28
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But I wonder if anyone has compared COBB with ESS in terms of power gain and delivery? Which is better?
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      09-16-2013, 07:27 AM   #29
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Why update something if it 's working fine really?

ESS was the reason I dumped the procede, endless updates and all the time something was missing, plus ess was r&d'ed on a 35i dct. I 'm happy I don't ''need'' any updates to be honest.
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      09-16-2013, 11:54 AM   #30
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Exactly whats Jannisa said! ESS goes for stability and engine longevity. Pushing the envelope only gets you with something broken in the long term. Don't get me wrong, the cobb V3 is absolutely awesome in every aspect and worth every penny hardware wise and with a protune you can squeeze out alot of extra HP compared to the ESS maps... But i dont really think its worth the worries... And this is coming from someone who owns the COBB v3.
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      09-16-2013, 12:11 PM   #31
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Quote:
Originally Posted by Gunzaro View Post
But I wonder if anyone has compared COBB with ESS in terms of power gain and delivery? Which is better?
The Cobb "linear throttle" maps are nice. Cobb also has a 30day money back guarantee so you could try it out, compare then return if needed.
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      10-03-2013, 03:53 PM   #32
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Once you have loaded the Cobb map into the ECU, does the Accessport have to stay attached to the car or can it be disconnected?
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      10-03-2013, 04:08 PM   #33
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Quote:
Originally Posted by MickOpalak View Post
Once you have loaded the Cobb map into the ECU, does the Accessport have to stay attached to the car or can it be disconnected?
it does not need to be connected. You only connect it to switch maps/ log/ or read codes.

unplug when not in use.
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      10-04-2013, 08:09 AM   #34
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I have ESS for couple of months now. In general, pretty happy with it. Installation is easy but you need to take a backup of the OEM software every time car comes back from the dealer. I learned that the hard way...

ESS stage 2 is supposed to give you 360hp (for some reason I had 390hp in my mind ) and 355 ftlbs torque, which are impressive assuming they are being conservative to protect the car in the long run.

The fact that ESS is going to be a very expensive paperweight when I sell my car was a major concern but had to deal with it. They also have a very responsive customer service, which is very important for me.

I have not tried COBB but I have also seen Active Autowerke's 1M tune applied to 35i which was quite impressive. The car also sounded better...
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      10-30-2013, 11:20 AM   #35
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i have the cobb AP with a z4 35i DCT and it's a little strange in 1st 2nd and 3rd gear.

from 4th gear on it's fine and pulls like a freight train.
the torque is amazing - of course!

Unfortunately with the Cobb - I had to go from the most aggressive (20 psi) map to the middle (15 psi) map because it was causing strange behaviour in the DCT in terms of downshifting and unsmooth power delivery.
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      10-30-2013, 01:55 PM   #36
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Quote:
Originally Posted by Tom (Atl) View Post
i have the cobb AP with a z4 35i DCT and it's a little strange in 1st 2nd and 3rd gear.

from 4th gear on it's fine and pulls like a freight train.
the torque is amazing - of course!

Unfortunately with the Cobb - I had to go from the most aggressive (20 psi) map to the middle (15 psi) map because it was causing strange behaviour in the DCT in terms of downshifting and unsmooth power delivery.
Which traction control mode are you in?

It could be that the electronics are braking wheels or limiting torque to minimize wheelspin.

If you drive the same way with DSC OFF you may find you are just getting tons of wheelspin
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      10-30-2013, 02:10 PM   #37
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Quote:
Originally Posted by nicknaz View Post
Which traction control mode are you in?

It could be that the electronics are braking wheels or limiting torque to minimize wheelspin.

If you drive the same way with DSC OFF you may find you are just getting tons of wheelspin
No it's not the traction. the problem is the same with it on and off (and I don't have wheelspin problems even with it FULLY off).

The turbos make lots more noise than stock, more whistling (in high boost mode), and simply don't spool up and put the power down well through the DCT in the high boost mode.
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      10-30-2013, 04:23 PM   #38
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Quote:
Originally Posted by Tom (Atl) View Post
No it's not the traction. the problem is the same with it on and off (and I don't have wheelspin problems even with it FULLY off).

The turbos make lots more noise than stock, more whistling (in high boost mode), and simply don't spool up and put the power down well through the DCT in the high boost mode.
I see. Sounds like something different. In my car sometimes in the lower gears it isn't accelerating as expected and I realized after some time it was due to wheelspin
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      10-30-2013, 04:28 PM   #39
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Do you have the cobb as well? which map do you run?
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      10-30-2013, 06:20 PM   #40
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I PM'd you Tom (Atl)
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      11-07-2013, 05:23 AM   #41
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Quote:
Originally Posted by Tom (Atl) View Post
I had to go from the most aggressive (20 psi) map to [...]
I am wondering what made you think running 20psi on a stock setup was a good idea in the first place?
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      11-07-2013, 09:31 AM   #42
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I am wondering what made you think running 20psi on a stock setup was a good idea in the first place?
Boost til bust !
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      11-11-2013, 12:59 PM   #43
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Lots of happy customers with Cobb
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Check out our current sale by clicking on this link!
https://x-ph.com/sale/

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      11-12-2013, 05:05 AM   #44
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