All COBB Tuning AccessPORT for 135i Discussion Here

[Mr. Nice]

the primary cats are more restrictive than the secondaries, you don't have to be cat less you can keep the cats in the mid pipes and just replace your downpipes

[ansch]

just like to say I just received my COBB yesterday

except i got an unrecognised rom

Email sent to COBB yesterday but no reply yet. I know they said up to 5 business days but come on... it's hard reading all about it and have it sitting on my desk doing nothing (the demo feature only keeps you amused for so long )

[Black Sheep]

Originally Posted by ansch

just like to say I just received my COBB yesterday

except i got an unrecognised rom

Email sent to COBB yesterday but no reply yet. I know they said up to 5 business days but come on... it's hard reading all about it and have it sitting on my desk doing nothing (the demo feature only keeps you amused for so long )

They will take care of you soon don't worry. They are really good about that...

[MPBK]

Originally Posted by Mr. Nice

the primary cats are more restrictive than the secondaries, you don't have to be cat less you can keep the cats in the mid pipes and just replace your downpipes

Seems like such a hassle... I see lots of people changing or recommending to replace their down pipes.
why did BMW engineers design the primary cats to be so restrictive?
Are they bad engineers? Did they make a calculation mistake? Did they not test the engine?

[Dodo]

Originally Posted by MPBK

Seems like such a hassle... I see lots of people changing or recommending to replace their down pipes.
why did BMW engineers design the primary cats to be so restrictive?
Are they bad engineers? Did they make a calculation mistake? Did they not test the engine?

They are good engineers, but they have other factors to consider besides ultimate performance. Think about it.. emissions, fuel consumption, noise, durability, cost, legality in literally hundreds of countries/jurisdictions etc. (*Edit* Also not stepping on any ///M toes would be a huge corporate deal /*Edit*)

You want to install mods to make your car faster? Cool. It is legal in many states in the US to get catless DP which is an easy performance boost. Just be happy you can even do that. In many places you could get in a lot of trouble if you mess with the emissions system of your car.

Just sayin'.

[Groundpilot]

Originally Posted by MPBK

Seems like such a hassle... I see lots of people changing or recommending to replace their down pipes.
why did BMW engineers design the primary cats to be so restrictive?
Are they bad engineers? Did they make a calculation mistake? Did they not test the engine?

Sometimes i wonder about the same thing. I am sure bmw engineers could have done better than that. At least give us an option for high flow catted DPs

[RimasRS]

Originally Posted by Groundpilot

Sometimes i wonder about the same thing. I am sure bmw engineers could have done better than that. At least give us an option for high flow catted DPs

Can't you understand one of the most important things creating a new model car is CO2. So what do you want from BMW sit and enjoy real power even with 4 cats on the car

[RimasRS]

Can we expect from COBB following?
1. Launch control (maybe adjustable RPM)
2. Throttle map between aggressive and linear (which would better work for rev matching)
3. Ability to limit boost if I don't want to run very high PSI (like Procede has) w/o ATR
4. Flat food shift
5. The most aggressive maps but with downpipes (to keep car legal)

Of course all BUG fix
That would be my perfect wish list.

[themyst]

Originally Posted by RimasRS

Can we expect from COBB following?
1. Launch control (maybe adjustable RPM) google WOTBOX
2. Throttle map between aggressive and linear (which would better work for rev matching) try alternate throttle maps
3. Ability to limit boost if I don't want to run very high PSI (like Procede has) w/o ATR go to a less aggressive map
4. Flat food shift google WOTBOX
5. The most aggressive maps but with downpipes (to keep car legal) wait for stage 1 + FMIC

Of course all BUG fix
That would be my perfect wish list.

Solutions provided

[RimasRS]

Yeah like google, buy smthng etc... It could be one perfect product, and it is possible.

[MPBK]

Originally Posted by Dodo

They are good engineers, but they have other factors to consider besides ultimate performance. Think about it.. emissions, fuel consumption, noise, durability, cost, legality in literally hundreds of countries/jurisdictions etc. (*Edit* Also not stepping on any ///M toes would be a huge corporate deal /*Edit*)

You want to install mods to make your car faster? Cool. It is legal in many states in the US to get catless DP which is an easy performance boost. Just be happy you can even do that. In many places you could get in a lot of trouble if you mess with the emissions system of your car.

Just sayin'.

Originally Posted by Groundpilot

Sometimes i wonder about the same thing. I am sure bmw engineers could have done better than that. At least give us an option for high flow catted DPs

I'm not sure if the sarcasm in my post came through...
The point is... BMW engineers put the "restrictive" cats and down pipes there for a reason.
Compromise, yes. But one needs to know what those are before blindly replacing the DPs.
I get the sense that a lot of people don't know. They just look at increased performance claims. At what price? If there was no price to be paid, BMW engineers would have done it.
On legality... even if there was no other price (such as driveability in low RPMs and durability of the engine), in many USA states an annual emissions test is mandated. You may not pass that test if you remove the cats.

[Dodo]

Originally Posted by MPBK

I'm not sure if the sarcasm in my post came through...

Yeah, sorry, didn't catch the sarcasm. Looks like we were both kinda making the same point .

[SANTI21]

N55 available ?

[Tweeked SRT4]

Yeah, any word on this being available for N55?

[RnmEvo9]

Originally Posted by Tweeked SRT4

Yeah, any word on this being available for N55?

http://www.e90post.com/forums/showpo...8&postcount=25

[ModBargains.com]

It took the Cobb team over two years to develop and perfect the N54 tune. N55 is right around the corner and you guys will not be disappointed!

[jsmonet]

i love cobb.

"hopefully by summer" with them tends to turn into "makes a great stocking stuffer.. just released!"

<--has had two AP's in the past haha

[ansch]

Originally Posted by **********s.com

It took the Cobb team over two years to develop and perfect the N54 tune. N55 is right around the corner and you guys will not be disappointed!

They just updated my ROM in the firmware so I am able to load maps now. All I can say is WOW

the whole install process is very painless and the result is that I will need new rear tires soon

[oman135]

i hope they will support gulf spec cars !

[ansch]

Originally Posted by oman135

i hope they will support gulf spec cars !

if it's anything like the australian cars where it is not officially supported. Then there is no reason to wait. Quite a few of us down under have the cobb and once the initial hurdle of getting the firmware update to recognise the rom, everything is great!

[christopherkriens]

I was in this morning for service from my local shop and a tech guy said he spoke with COBB yesterday and the N55 was "a few weeks away". Yay rumors!

[stevenc]

To change maps must you return to stock or can you just switch directly between maps?

I just installed my Cobb. Top end seems good but low end power seems just okay. Havent even seen the traction control light come on yet, and im full bolt on stg 2...