Cobb ap2 stage 1, questions

335tim · 01-09-2014, 05:10 PM

I have installed the Cobb ap2 on stage 1 sport. I tried linear throttle
but prefer the feel of stock so settled on that.

Anyway, the car feels ALOT faster already. I know I can go to aggressive on stage 1 with no other mods as long as I'm on v power or the like but I'm wondering if I should atleast change to k&n drop in filters if doing this to let the engine breath more?

Also, can anyone tell me what boost the turbos run at on both sport and aggressive settings?

zltm089 · 01-10-2014, 08:29 AM

I run on stage 1 aggressive and stock throttle.

I think it's somewhere around 15psi....

idnan · 01-10-2014, 09:10 AM

A drop in filter is a fairly good idea and is fairly cheap.

Boost is probably around what Kev said. However there are a other factors in producing power such as the level of timing advance and VANOS stuff. Best way to check is to plug your AP in, go to monitor, then live data and push up 3 times to get boost (it is close to the bottom of the list). Look at the number on a steady pull and ignore the slight spikes you might see when lifting off or during traction control intervention.

01-09-2014, 05:10 PM	#1
335tim Second Lieutenant 32 Rep 214 Posts Drives: e92 335i se montego blue Join Date: Jan 2012 Location: london iTrader: (0)	Cobb ap2 stage 1, questions I have installed the Cobb ap2 on stage 1 sport. I tried linear throttle but prefer the feel of stock so settled on that. Anyway, the car feels ALOT faster already. I know I can go to aggressive on stage 1 with no other mods as long as I'm on v power or the like but I'm wondering if I should atleast change to k&n drop in filters if doing this to let the engine breath more? Also, can anyone tell me what boost the turbos run at on both sport and aggressive settings?
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01-10-2014, 08:29 AM	#2
zltm089 Banned 257 Rep 7,686 Posts Drives: 335i SE Coupe Space Grey Join Date: Nov 2008 Location: LONDON iTrader: (0) Garage List 2006 BMW 335i [10.00]	I run on stage 1 aggressive and stock throttle. I think it's somewhere around 15psi....
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01-10-2014, 09:10 AM	#3
idnan Lieutenant Colonel 77 Rep 1,508 Posts Drives: Alpine White 335i Join Date: Nov 2010 Location: Birmingham iTrader: (9)	A drop in filter is a fairly good idea and is fairly cheap. Boost is probably around what Kev said. However there are a other factors in producing power such as the level of timing advance and VANOS stuff. Best way to check is to plug your AP in, go to monitor, then live data and push up 3 times to get boost (it is close to the bottom of the list). Look at the number on a steady pull and ignore the slight spikes you might see when lifting off or during traction control intervention.
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