iCarbon N55 DP and AR N54 DPs

bogart · 06-03-2011, 01:43 PM

These are going in tonight! Will have photos and videos soon.

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vwrefugee · 06-03-2011, 02:34 PM

That iCarbon dp will make your N55 make wicked sounds through the stock catback.

bogart · 06-03-2011, 02:57 PM

Quote:

Originally Posted by vwrefugee

That iCarbon dp will make your N55 make wicked sounds through the stock catback.

The exhaust currently isn't completely stock. I have the BMW performance axel back too... so it should be a great combination!!

onefastman · 06-03-2011, 03:05 PM

parky1215 · 06-03-2011, 03:12 PM

my n55 once had icarbon catted dp, stock midpipe with resonator and bmw perf exhaust.
there was no annoying drone with this setup but it was pretty quiet inside the car.

once i replaced stock midpipe with bmw perf y pipe, everything got louder, but then there is noticeable drone now >.<

Tony135 · 06-03-2011, 03:51 PM

I'm not the biggest fan of the sound of a catless DP and stock exhaust. I LOVE how it sounds when it's opened up but when you're driving slow and in low RPMs on streets, it sounds a little weird.

bogart · 06-03-2011, 04:50 PM

Quote:

Originally Posted by parky1215

my n55 once had icarbon catted dp, stock midpipe with resonator and bmw perf exhaust.
there was no annoying drone with this setup but it was pretty quiet inside the car.

once i replaced stock midpipe with bmw perf y pipe, everything got louder, but then there is noticeable drone now >.<

N55 midpipe does not have a resonator...

Quote:

Originally Posted by Tony135

I'm not the biggest fan of the sound of a catless DP and stock exhaust. I LOVE how it sounds when it's opened up but when you're driving slow and in low RPMs on streets, it sounds a little weird.

Good thing I don't have a stock exhaust then!!!

parky1215 · 06-03-2011, 05:15 PM

Quote:

Originally Posted by bogart

N55 midpipe does not have a resonator...

n55 midpipe has resonator. it doesn't have cats.

bogart · 06-03-2011, 11:20 PM

N55 midpipe has no resonator or cats.

parky1215 · 06-03-2011, 11:58 PM

Quote:

Originally Posted by bogart

N55 midpipe has no resonator or cats.

it has big fat resonator right before axleback.
i know this because i installed bmw perf exhaust just a week ago on my n55 car.

Tony135 · 06-04-2011, 01:03 AM

Quote:

Originally Posted by bogart

N55 midpipe does not have a resonator...

Good thing I don't have a stock exhaust then!!!

I'd love to hear how it sounds with a BMW Perf exhaust. I've been looking into that.

bogart · 06-04-2011, 05:03 PM

Quote:

Originally Posted by parky1215

it has big fat resonator right before axleback.
i know this because i installed bmw perf exhaust just a week ago on my n55 car.

You were correct. My bad. Mine was deleted even before I picked the car up from the dealer, because I had them install the performance exhaust.

Quote:

Originally Posted by Tony135

I'd love to hear how it sounds with a BMW Perf exhaust. I've been looking into that.

Soon enough! Just finished installing the iCarbon DP on my N55!!! It sounds so incredible.

bogart · 06-04-2011, 11:23 PM

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Removing N54 cats

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New AR catless downpipes

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iCarbon N55 DP left, AR N54 DPs right

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Jim's shop

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Long night on the N54

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One of the N54 turbos

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ARs in place

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Bottom of the E82 N54 chassis

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Removing N55 cat

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Left = new, right = old

bogart · 06-04-2011, 11:27 PM

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N55 cat out

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N55 turbo

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New iCarbon DP in place

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Bottom of the E82 N55 chassis

onefastman · 06-04-2011, 11:53 PM

Looks almost as good as it sounds

cooler2442 · 06-04-2011, 11:58 PM

So did anyone figure out what produces the vibration / drone if you have an N55 full exhaust system + DP? Is it the midpipes or the axle back?

onefastman · 06-05-2011, 08:28 AM

No drone here.

Drone is often the muffler. I have a catless full single 3" system on my car and before I cut out the muffler it droned like hell and after its quiet as can be, at cruse that is.

cooler2442 · 06-05-2011, 08:31 AM

Quote:

Originally Posted by onefastman

No drone here.

Drone is often the muffler. I have a catless full single 3" system on my car and before I cut out the muffler it droned like hell and after its quiet as can be, at cruse that is.

Yeah I just have slight drone at 2k RPM if I am in fully automatic mode without shifting myself. I am just trying to figure out if its the mid pipes or the axle back. But based on your comment I am going to assume its the axleback so now I know that if I really get tired of it I can replace the axleback to stock and keep the DP and mid pipes.

RnmEvo9 · 06-05-2011, 08:34 AM

Quote:

Originally Posted by Tony135

I'm not the biggest fan of the sound of a catless DP and stock exhaust. I LOVE how it sounds when it's opened up but when you're driving slow and in low RPMs on streets, it sounds a little weird.

What are you going by? N54 or N55? I personally have a N54 with catless downpipes and stock exhaust and it's really quiet to me. It's only louder by a bit when I go WOT, but daily driving it normally is just like stock...

Tony135 · 06-05-2011, 03:34 PM

Quote:

Originally Posted by RnmEvo9

What are you going by? N54 or N55? I personally have a N54 with catless downpipes and stock exhaust and it's really quiet to me. It's only louder by a bit when I go WOT, but daily driving it normally is just like stock...

N55. It's VERY quiet while cruising around with the windows up, but when they're down and you're at low RPMs it almost sounds like a tdi to me. Maybe I'm just weird. Either way, it sounds wicked when you open it up.

bogart · 06-05-2011, 06:34 PM

Quote:

Originally Posted by onefastman

Looks almost as good as it sounds

Quote:

Originally Posted by cooler2442

So did anyone figure out what produces the vibration / drone if you have an N55 full exhaust system + DP? Is it the midpipes or the axle back?

muffler... i know this, because i have the DP, resonator delete, and BMW exhaust... it drones on the highway now at 70 mph in cruise control... not a big deal.

Quote:

Originally Posted by onefastman

No drone here.

Drone is often the muffler. I have a catless full single 3" system on my car and before I cut out the muffler it droned like hell and after its quiet as can be, at cruse that is.

quiet... HA!

Quote:

Originally Posted by cooler2442

Yeah I just have slight drone at 2k RPM if I am in fully automatic mode without shifting myself. I am just trying to figure out if its the mid pipes or the axle back. But based on your comment I am going to assume its the axleback so now I know that if I really get tired of it I can replace the axleback to stock and keep the DP and mid pipes.

your midpipes have a resonator, but most likely it is the axel back.

Quote:

Originally Posted by RnmEvo9

What are you going by? N54 or N55? I personally have a N54 with catless downpipes and stock exhaust and it's really quiet to me. It's only louder by a bit when I go WOT, but daily driving it normally is just like stock...

your N54 is somewhat quiet, because you still have secondary cats and a stock muffler.

Quote:

Originally Posted by Tony135

N55. It's VERY quiet while cruising around with the windows up, but when they're down and you're at low RPMs it almost sounds like a tdi to me. Maybe I'm just weird. Either way, it sounds wicked when you open it up.

wicked... agreed

bogart · 06-07-2011, 08:38 AM

06-03-2011, 01:43 PM	#1
bogart Lieutenant Colonel 116 Rep 1,664 Posts Drives: E82 N55 DCT Join Date: Nov 2010 Location: STL, MO iTrader: (4) Garage List 2011 BMW 135i [7.06]	iCarbon N55 DP and AR N54 DPs These are going in tonight! Will have photos and videos soon. __________________
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06-03-2011, 02:34 PM	#2
vwrefugee Private First Class 17 Rep 126 Posts Drives: 2011 BMW 135i 6MT Join Date: Jul 2010 Location: Canada iTrader: (0)	That iCarbon dp will make your N55 make wicked sounds through the stock catback.
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06-03-2011, 03:05 PM	#4
onefastman Major General 159 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	__________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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06-03-2011, 03:12 PM	#5
parky1215 Lieutenant Colonel 564 Rep 1,982 Posts Drives: F90 M5C \| G06 X6 M60i Join Date: Nov 2010 Location: Rancho Cucamonga, CA iTrader: (13)	my n55 once had icarbon catted dp, stock midpipe with resonator and bmw perf exhaust. there was no annoying drone with this setup but it was pretty quiet inside the car. once i replaced stock midpipe with bmw perf y pipe, everything got louder, but then there is noticeable drone now >.<
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06-03-2011, 03:51 PM	#6
Tony135 Lieutenant Colonel 178 Rep 1,516 Posts Drives: ‘22 Model 3 Join Date: May 2011 Location: SoCal iTrader: (0)	I'm not the biggest fan of the sound of a catless DP and stock exhaust. I LOVE how it sounds when it's opened up but when you're driving slow and in low RPMs on streets, it sounds a little weird.
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06-03-2011, 11:20 PM	#9
bogart Lieutenant Colonel 116 Rep 1,664 Posts Drives: E82 N55 DCT Join Date: Nov 2010 Location: STL, MO iTrader: (4) Garage List 2011 BMW 135i [7.06]	N55 midpipe has no resonator or cats. __________________
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06-04-2011, 11:23 PM	#13
bogart Lieutenant Colonel 116 Rep 1,664 Posts Drives: E82 N55 DCT Join Date: Nov 2010 Location: STL, MO iTrader: (4) Garage List 2011 BMW 135i [7.06]	Install complete Removing N54 cats New AR catless downpipes iCarbon N55 DP left, AR N54 DPs right Jim's shop Long night on the N54 One of the N54 turbos ARs in place Bottom of the E82 N54 chassis Removing N55 cat Left = new, right = old __________________
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06-04-2011, 11:27 PM	#14
bogart Lieutenant Colonel 116 Rep 1,664 Posts Drives: E82 N55 DCT Join Date: Nov 2010 Location: STL, MO iTrader: (4) Garage List 2011 BMW 135i [7.06]	N55 cat out N55 turbo New iCarbon DP in place Bottom of the E82 N55 chassis __________________
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06-04-2011, 11:53 PM	#15
onefastman Major General 159 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	Looks almost as good as it sounds __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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06-04-2011, 11:58 PM	#16
cooler2442 Brigadier General 477 Rep 4,154 Posts Drives: 1/18 Monte Carlo Blue E92 M3 Join Date: Apr 2011 Location: Los Angeles iTrader: (6) Garage List 2016 Porsche GT4 [0.00]	So did anyone figure out what produces the vibration / drone if you have an N55 full exhaust system + DP? Is it the midpipes or the axle back?
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06-05-2011, 08:28 AM	#17
onefastman Major General 159 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	No drone here. Drone is often the muffler. I have a catless full single 3" system on my car and before I cut out the muffler it droned like hell and after its quiet as can be, at cruse that is. __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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06-07-2011, 08:38 AM	#22
bogart Lieutenant Colonel 116 Rep 1,664 Posts Drives: E82 N55 DCT Join Date: Nov 2010 Location: STL, MO iTrader: (4) Garage List 2011 BMW 135i [7.06]	__________________
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