n54 to n55 x impressions

krayzie089 · 12-15-2011, 05:07 PM

I dropped my 09 335i car off at the dealer this morning for servicing and to my surprise my loaner was a 2011 335 xdrive. Never thought they would send me off in something better than i dropped off. The only two bad things is its an auto and has 2 extra doors

. But anyways i was amazed at the difference in performance. Almost feels like how my 09 does with my cobb. I also like hearing the DV a little when i ease off the gas. If i didnt already purchase all my bolt-ons for the n54, i think i would trade up to a 2011. Anyone else feel the same way?

Wild Squid · 12-15-2011, 05:50 PM

So you're saying the N55 feels faster than N54? I feel the opposite.

be1ieve1111 · 12-15-2011, 05:52 PM

You realize from a stop it will be a lot quicker due to the x-drive, and slower afterwards due to the x-drive.

GB///M · 12-15-2011, 09:38 PM

I actually had the same loaner just a few days ago and was really trying to notice differences between the two engines, but honestly couldn't tell. The acceleration felt the same and I was trying through all gears. One thing I did notice was my n54 was a lot louder on cold startups than the n55 and I even unplugged the exhaust actuator from the trunk of the loaner. And my car is stock too.

crl8474 · 12-15-2011, 09:45 PM

Modding a loaner (unplugging the exhaust actuator)...that's awesome.

Kolyan2k · 12-15-2011, 09:51 PM

Quote:

Originally Posted by krayzie089

Almost feels like how my 09 does with my cobb

troll?

R.dub · 12-15-2011, 10:04 PM

I have several dealers loan a car that's an upgrade from what I'm getting serviced.
They want you to trade-up! Nice mod on the loaner!

BadassBeamer · 12-15-2011, 11:03 PM

Quote:

Originally Posted by Donnie-Bay

I actually had the same loaner just a few days ago and was really trying to notice differences between the two engines, but honestly couldn't tell. The acceleration felt the same and I was trying through all gears. One thing I did notice was my n54 was a lot louder on cold startups than the n55 and I even unplugged the exhaust actuator from the trunk of the loaner. And my car is stock too.

This is kinda off topic but could the dealer see if I unplugged the actuator and if so, would it do anything to my warranty?

nbkkvv5 · 12-15-2011, 11:55 PM

Quote:

Originally Posted by BadassBeamer

This is kinda off topic but could the dealer see if I unplugged the actuator and if so, would it do anything to my warranty?

That will throw a code that the dealer can see but should not be a big deal unless the dealer is a dick

BadassBeamer · 12-16-2011, 12:06 AM

Quote:

Originally Posted by nbkkvv5

That will throw a code that the dealer can see but should not be a big deal unless the dealer is a dick

I see.. you think its worth it? ahah

nbkkvv5 · 12-16-2011, 12:21 AM

Quote:

Originally Posted by BadassBeamer

I see.. you think its worth it? ahah

From what I've read, if you got a coupe, it will sound better. If you have the sedan, it will change the sound but not as good as the coupe. Try it and you be the judge. If you don't like it, just reconnect the plug.

BadassBeamer · 12-16-2011, 12:29 AM

Quote:

Originally Posted by nbkkvv5

From what I've read, if you got a coupe, it will sound better. If you have the sedan, it will change the sound but not as good as the coupe. Try it and you be the judge. If you don't like it, just reconnect the plug.

I do have a coupe. For some reason I've never heard of this mod. Sorry probably sound like a noob but if I plug it back in before i go to the dealer, will they see it or care about it you think?

krayzie089 · 12-16-2011, 02:46 AM

Quote:

Originally Posted by be1ieve1111

You realize from a stop it will be a lot quicker due to the x-drive, and slower afterwards due to the x-drive.

Yeah i drew the same conclusion after i drove it a bit longer. The auto transmission is not half bad either. The paddle shifting is kind of neat, but i digress im not a family man yet. Ill stick to the 6 speed.

krayzie089 · 12-16-2011, 02:49 AM

Quote:

Originally Posted by Kolyan2k

troll?

Ok i admit i was talking out of my ass a bit, but the x drive makes a big difference. I still believe stock for stock the n55 is faster and feels smoother.

Cozy · 12-16-2011, 03:55 AM

Quote:

Originally Posted by BadassBeamer

I do have a coupe. For some reason I've never heard of this mod. Sorry probably sound like a noob but if I plug it back in before i go to the dealer, will they see it or care about it you think?

If you don't want the code thrown up, get under the left hand exhaust tip and identify a rubber hose that is plugged onto an actuator on the exhaust pipe. Pull this hose off and bung it up with a bolt, golf tee or something similar, then tuck the hose away in the bumper. This will stop the exhaust flap closing on start up & up to 4000rpm where it usually opens again. It will now be open all the time and IMO sounds great in comparison to stock

.

John 070 · 12-16-2011, 04:53 AM

Personally I like the idea that back in 07-10 BMW had 4 CATS and two turbos on the car, for no other reason but from an engineering standpoint. I understand that removing 3 CATS and one turbo saved BMW a boatload of money, but the thing is they didn't pass it on to the buyer. So that's just me, 07-10 > 11+

krayzie089 · 12-16-2011, 06:02 AM

Quote:

Originally Posted by John 070

Personally I like the idea that back in 07-10 BMW had 4 CATS and two turbos on the car, for no other reason but from an engineering standpoint. I understand that removing 3 CATS and one turbo saved BMW a boatload of money, but the thing is they didn't pass it on to the buyer. So that's just me, 07-10 > 11+

Car makers will never pass on the savings to us consumers, they will not make extra money for the top executives that way. Just think they are now making 4.5 mil a year now instead of 3.9 due to the cut in production cost. To make it seem like we are getting something better they toss a few more ponies into the engine to justify the 5k price increase. In reality we all know the car was making that power to begin with anyways. Capitalism at its finest and it works cause im sold.

nbkkvv5 · 12-16-2011, 11:39 AM

Quote:

Originally Posted by BadassBeamer

I do have a coupe. For some reason I've never heard of this mod. Sorry probably sound like a noob but if I plug it back in before i go to the dealer, will they see it or care about it you think?

Here's the write up on both mods to help you decide

http://www.e90post.com/forums/showth...ator+resonator

http://www.e90post.com/forums/showth...t=golf+tee+mod

GB///M · 12-16-2011, 11:46 AM

Quote:

Originally Posted by BadassBeamer

Quote:

Originally Posted by Donnie-Bay

I actually had the same loaner just a few days ago and was really trying to notice differences between the two engines, but honestly couldn't tell. The acceleration felt the same and I was trying through all gears. One thing I did notice was my n54 was a lot louder on cold startups than the n55 and I even unplugged the exhaust actuator from the trunk of the loaner. And my car is stock too.

This is kinda off topic but could the dealer see if I unplugged the actuator and if so, would it do anything to my warranty?

I'm sure they could see it but I've taken my car to the dealer dozens of times and they have never said anything about it. You will be fine if you do it.

GB///M · 12-16-2011, 11:48 AM

Quote:

Originally Posted by crl8474

Modding a loaner (unplugging the exhaust actuator)...that's awesome.

Lol I was only conducting a science experiment

335BBS · 12-16-2011, 12:27 PM

Quote:

Originally Posted by be1ieve1111

You realize from a stop it will be a lot quicker due to the x-drive, and slower afterwards due to the x-drive.

A lot quicker? Slower? .1-.2 seconds is a lot quicker? This is with 4000 rpm clutch dump. Both cars top speed is governed at the same speed.

be1ieve1111 · 12-16-2011, 07:58 PM

Quote:

Originally Posted by Leaker

A lot quicker? Slower? .1-.2 seconds is a lot quicker? This is with 4000 rpm clutch dump. Both cars top speed is governed at the same speed.

Well I'm coming from an awd STi to a RWD 335i so yes those .2 seconds make or brake your traffic light 0-30 mph races with racers/ricers.

12-15-2011, 05:07 PM	#1
krayzie089 Private First Class 4 Rep 140 Posts Drives: 2009 3351 coupe Join Date: Sep 2011 Location: Frederick MD iTrader: (0)	n54 to n55 x impressions I dropped my 09 335i car off at the dealer this morning for servicing and to my surprise my loaner was a 2011 335 xdrive. Never thought they would send me off in something better than i dropped off. The only two bad things is its an auto and has 2 extra doors. But anyways i was amazed at the difference in performance. Almost feels like how my 09 does with my cobb. I also like hearing the DV a little when i ease off the gas. If i didnt already purchase all my bolt-ons for the n54, i think i would trade up to a 2011. Anyone else feel the same way?
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12-15-2011, 05:50 PM	#2
Wild Squid Banned 21 Rep 626 Posts Drives: 2011 BMW 335i coupe Msport AW Join Date: Mar 2011 Location: Nor Cal iTrader: (0)	So you're saying the N55 feels faster than N54? I feel the opposite.
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12-15-2011, 05:52 PM	#3
be1ieve1111 Thread Killer 20 Rep 930 Posts Drives: 2014 EB M235i Join Date: May 2010 Location: Indiana iTrader: (9)	You realize from a stop it will be a lot quicker due to the x-drive, and slower afterwards due to the x-drive.
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12-15-2011, 09:38 PM	#4
GB///M Captain 163 Rep 819 Posts Drives: M3 CS, X5 M60i Join Date: Apr 2009 Location: Chicago iTrader: (0)	I actually had the same loaner just a few days ago and was really trying to notice differences between the two engines, but honestly couldn't tell. The acceleration felt the same and I was trying through all gears. One thing I did notice was my n54 was a lot louder on cold startups than the n55 and I even unplugged the exhaust actuator from the trunk of the loaner. And my car is stock too.
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12-15-2011, 09:45 PM	#5
crl8474 Second Lieutenant 48 Rep 207 Posts Drives: 2011 E90 M3 Join Date: Jan 2011 Location: Prosper, Tx iTrader: (1)	Modding a loaner (unplugging the exhaust actuator)...that's awesome.
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12-15-2011, 10:04 PM	#7
R.dub New Member 0 Rep 19 Posts Drives: 2008 335xi e90 Join Date: Dec 2011 Location: MidWest US iTrader: (0)	I have several dealers loan a car that's an upgrade from what I'm getting serviced. They want you to trade-up! Nice mod on the loaner!
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12-16-2011, 04:53 AM	#16
John 070 Lieutenant General 1705 Rep 14,829 Posts Drives: 335i cpe Join Date: Oct 2006 Location: ZSP/ZPP/ZCW iTrader: (0)	Personally I like the idea that back in 07-10 BMW had 4 CATS and two turbos on the car, for no other reason but from an engineering standpoint. I understand that removing 3 CATS and one turbo saved BMW a boatload of money, but the thing is they didn't pass it on to the buyer. So that's just me, 07-10 > 11+
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