>>HP Autowerks<< Akrapovic 135i (N54) Downpipes

HP Autosport · 11-29-2011, 01:29 AM

The BMW N54 twin-turbo engine is a true factory-made beast, but Akrapovic's engineers developed a special aftermarket downpipe system for it, which makes the N54 even better. These down pipes are designed for drivers who demand more power and less weight. In addition to a weight reduction and a power gain, one of the tasks of the Akrapovic team was also to make the sound of the N54 become music to ones ears.

$1650

http://hpashop.com/Akrapovic-BMW-E82...pe-e82-n54.htm

DTNJNQ · 11-29-2011, 04:55 AM

Will these fit on a RHD model 135i without any modifications.

Richard135i · 11-29-2011, 07:13 PM

I second that question. PM me shipping cost to Australia (3142).

I've got the BMW Perf Exhaust, any test with this set up to know gains in perf and sound.

chachacha28 · 11-29-2011, 07:16 PM

dyno?

HP Autosport · 11-29-2011, 07:25 PM

Quote:

Originally Posted by DTNJNQ

Will these fit on a RHD model 135i without any modifications.

Yes, these will fit RHD models.

NTTY · 12-04-2011, 09:30 AM

Quote:

Originally Posted by Richard135i

I second that question. PM me shipping cost to Australia (3142).

I've got the BMW Perf Exhaust, any test with this set up to know gains in perf and sound.

Hi, same question from Switzerland to HP Auto.
I guess the sound will improve, but it might be a problem with authorities.
Also, I assume those will generate an engine light at the dashboard. Is there something we can do?
Final question, what about emission, still legal? The 135 N54 has rear cats, will it be sufficient to pass emission tests?

Thank you!

HP Autosport · 12-04-2011, 12:05 PM

Quote:

Originally Posted by NTTY

Hi, same question from Switzerland to HP Auto.
I guess the sound will improve, but it might be a problem with authorities.
Also, I assume those will generate an engine light at the dashboard. Is there something we can do?
Final question, what about emission, still legal? The 135 N54 has rear cats, will it be sufficient to pass emission tests?

Thank you!

No, these are not emission legal. You will have a CEL and to eliminated, you will need to run an O2 similator.

NTTY · 12-04-2011, 04:06 PM

Thank you for the quick answer!

HP Autosport · 02-03-2012, 06:30 PM

N54 DP's in stock

HP Autosport · 04-19-2012, 11:43 PM

Good in stock!

Ask us about the open box/display model special!

HP Autosport · 08-02-2012, 12:08 AM

Fits 135i and 335i with N54, 335iS as well!

CL 19 · 10-02-2012, 01:42 AM

One question. Will it fir on N55 or only for N54? Thanks

HP Autosport · 10-02-2012, 04:33 PM

Quote:

Originally Posted by carlolesmana

One question. Will it fir on N55 or only for N54? Thanks

N54 only.

zz10 · 12-04-2012, 09:15 AM

anymore display sets for sale!?

HP Autosport · 07-16-2013, 01:05 PM

Bump!

meng4n1to · 09-23-2013, 09:59 AM

Does anyone know the gains of these downpipes in comparison to say the CP-e, AR & BMS downpipes?

11-29-2011, 01:29 AM	#1
HP Autosport Supreme Allied Commander 3841 Rep 54,349 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	>>HP Autowerks<< Akrapovic 135i (N54) Downpipes The BMW N54 twin-turbo engine is a true factory-made beast, but Akrapovic's engineers developed a special aftermarket downpipe system for it, which makes the N54 even better. These down pipes are designed for drivers who demand more power and less weight. In addition to a weight reduction and a power gain, one of the tasks of the Akrapovic team was also to make the sound of the N54 become music to ones ears. $1650 http://hpashop.com/Akrapovic-BMW-E82...pe-e82-n54.htm Last edited by HP Autosport; 02-12-2013 at 01:38 PM..
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11-29-2011, 04:55 AM	#2
DTNJNQ Captain 110 Rep 994 Posts Drives: M2, 135i, Xclass Join Date: Apr 2008 Location: Melbourne, Australia iTrader: (0) Garage List 2008 BMW 135i [8.66]	Will these fit on a RHD model 135i without any modifications. __________________ __________________________________________________
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11-29-2011, 07:13 PM	#3
Richard135i Second Lieutenant 14 Rep 212 Posts Drives: . Join Date: Jul 2009 Location: Melbourne, Australia iTrader: (1)	I second that question. PM me shipping cost to Australia (3142). I've got the BMW Perf Exhaust, any test with this set up to know gains in perf and sound.
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11-29-2011, 07:16 PM	#4
chachacha28 NCOIC of Kickin It 78 Rep 946 Posts Drives: 08 135i "Simona" Join Date: Feb 2011 Location: Great Falls MT iTrader: (1)	dyno?
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12-04-2011, 04:06 PM	#8
NTTY Second Lieutenant 37 Rep 234 Posts Drives: G30 M550xi Join Date: Jul 2009 Location: Switzerland iTrader: (0)	Thank you for the quick answer! __________________ 2018 M550i Sepia-Violet
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02-03-2012, 06:30 PM	#9
HP Autosport Supreme Allied Commander 3841 Rep 54,349 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	Akra N54 DP N54 DP's in stock
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04-19-2012, 11:43 PM	#10
HP Autosport Supreme Allied Commander 3841 Rep 54,349 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	Good in stock! Ask us about the open box/display model special!
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08-02-2012, 12:08 AM	#11
HP Autosport Supreme Allied Commander 3841 Rep 54,349 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	Fits 135i and 335i with N54, 335iS as well!
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10-02-2012, 01:42 AM	#12
CL 19 BMW Enthusiast 106 Rep 1,034 Posts Drives: 2011 E82 135i Join Date: Jan 2011 Location: Davis, CA iTrader: (1)	One question. Will it fir on N55 or only for N54? Thanks
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12-04-2012, 09:15 AM	#14
zz10 Banned 38 Rep 308 Posts Drives: 335i Join Date: Feb 2011 Location: singapore iTrader: (0) Garage List 2007 E92 335i [0.00]	anymore display sets for sale!?
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07-16-2013, 01:05 PM	#15
HP Autosport Supreme Allied Commander 3841 Rep 54,349 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	Bump!
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09-23-2013, 09:59 AM	#16
meng4n1to Mr 4 Rep 64 Posts Drives: 2009 BMW 135i Coupe Join Date: Apr 2011 Location: Johannesburg iTrader: (0)	Does anyone know the gains of these downpipes in comparison to say the CP-e, AR & BMS downpipes? __________________ 2009 BMW 135i 2013 Renault Megane RS 265 Trophy
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