What downpipe gains most?

Bimtism · 02-16-2015, 02:35 AM

Hey guys, I am thinking about getting downpipe in coupe weeks but i was wondering which downpipe gains most HP to car? I currently have COBB Stage 1 and Remus quad exhaust. Thanks.

loesch · 02-16-2015, 07:38 AM

They almost all use the same design. There is going to be very little difference between any brand. Get the cheapest downpipes you can find that have a good reputation for fitting well.

mike@x-ph.com · 02-16-2015, 10:43 AM

The gains are similar on most DP.
get the VRSF dp, they are the most popular DP for this platform.

Mike@N54Tuning.com · 02-16-2015, 11:54 AM

Quote:

Originally Posted by Bimtism

Hey guys, I am thinking about getting downpipe in coupe weeks but i was wondering which downpipe gains most HP to car? I currently have COBB Stage 1 and Remus quad exhaust. Thanks.

All catless downpipes will yield pretty much the exact same results as long as they are true 3" pipes, like the ar design or N54Tuning Performance line ones. The most popular brands are ar design, N54Tuning Performance line and VRSF.

Either of those will be a good choice, but just avoid no name eBay pipes.

Mike

loesch · 02-16-2015, 12:54 PM

Why do all you salesmen have to repeat my answer to the guy?

Boosted_N54 · 02-16-2015, 01:34 PM

Quote:

Originally Posted by Mike@N54Tuning.com

Quote:

Originally Posted by Bimtism

Hey guys, I am thinking about getting downpipe in coupe weeks but i was wondering which downpipe gains most HP to car? I currently have COBB Stage 1 and Remus quad exhaust. Thanks.

All catless downpipes will yield pretty much the exact same results as long as they are true 3" pipes, like the ar design or N54Tuning Performance line ones. The most popular brands are ar design, N54Tuning Performance line and VRSF.

Either of those will be a good choice, but just avoid no name eBay pipes.

Mike

I have Active Autowerke DP. are these not as good or gain same hp/TQ as AR Design?

Miko226 · 02-17-2015, 12:54 AM

Quote:

Originally Posted by Socrates.Tii

I have Active Autowerke DP. are these not as good or gain same hp/TQ as AR Design?

AA are great and i have them also however i wish i knew about the VRSF option prior to spending double what i should have fore downpipes

dcaron9999 · 02-17-2015, 07:35 AM

Bought the n54tuning performance line DP myself a few months ago for under $280USD. Could not be happier.

Mike@N54Tuning.com · 02-17-2015, 10:47 AM

Quote:

Originally Posted by Socrates.Tii

I have Active Autowerke DP. are these not as good or gain same hp/TQ as AR Design?

AA are not very good in my opinion as they dent the pipe to make it fit properly, so its not the ideal fitment

[assuming they are the same version as they had a year ago]

Mike

Solo_M_Tech · 02-17-2015, 10:51 AM

I have the Megan Racing 4" catless downpipe and it works perfect. $320 bucks with free shipping.

AK. · 02-17-2015, 11:02 AM

VRSF is the way to go!

Cavpilot2k · 02-19-2015, 08:03 AM

Any thoughts on the CP-E 5" DP? 5" seems excessive.
Then I wonder, what about their high-flow cat? Perhaps with a 5" DP, the cat will provide less restriction than a high-flow cat on a 3" DP, so maybe some decent gains could be made even with a cat on their 5" DP.
Just a thought.

Boosted_N54 · 02-19-2015, 01:57 PM

Quote:

Originally Posted by Mike@N54Tuning.com

Quote:

Originally Posted by Socrates.Tii

I have Active Autowerke DP. are these not as good or gain same hp/TQ as AR Design?

AA are not very good in my opinion as they dent the pipe to make it fit properly, so its not the ideal fitment

[assuming they are the same version as they had a year ago]

Mike

then why did you sell them to me remember . My name is Socrates if you remember I had ordered some other DP and they never came and you send me AA and Autocoture my shop I go to couldn't make them fit and oder a new set of AA

02-16-2015, 02:35 AM	#1
Bimtism Enlisted Member 14 Rep 46 Posts Drives: 08/135i/Red Join Date: Jan 2015 Location: Toronto iTrader: (0)	What downpipe gains most? Hey guys, I am thinking about getting downpipe in coupe weeks but i was wondering which downpipe gains most HP to car? I currently have COBB Stage 1 and Remus quad exhaust. Thanks.
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02-16-2015, 07:38 AM	#2
loesch Captain 129 Rep 917 Posts Drives: 2011 BMW 135i M Sport Join Date: Feb 2012 Location: State College, PA iTrader: (4)	They almost all use the same design. There is going to be very little difference between any brand. Get the cheapest downpipes you can find that have a good reputation for fitting well. __________________ 2011 135i M Sport 6MT LeMans Blue \| Active Autowerke Gen II axle back \| Berk d******* \| N54 gutted mids \| FuelIt Walbro 450 fuel pump \| Pure Turbos Stage 2 \| 3.5bar TMAP \| Pure Turbos inlet pipe \| BMS intake \| BMS oil catch can \| ETS intercooler \| ETS charge pipe \| BMS JB4 w/ ISO firmware \| BMS backend flash stacked on PPK \| Eibach springs \| Whiteline rear subframe bushing inserts \| cosmetic tidbits
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02-16-2015, 10:43 AM	#3
mike@x-ph.com Joint Chiefs of Staff 24036 Rep 190,539 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	The gains are similar on most DP. get the VRSF dp, they are the most popular DP for this platform. __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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02-16-2015, 12:54 PM	#5
loesch Captain 129 Rep 917 Posts Drives: 2011 BMW 135i M Sport Join Date: Feb 2012 Location: State College, PA iTrader: (4)	Why do all you salesmen have to repeat my answer to the guy? __________________ 2011 135i M Sport 6MT LeMans Blue \| Active Autowerke Gen II axle back \| Berk d******* \| N54 gutted mids \| FuelIt Walbro 450 fuel pump \| Pure Turbos Stage 2 \| 3.5bar TMAP \| Pure Turbos inlet pipe \| BMS intake \| BMS oil catch can \| ETS intercooler \| ETS charge pipe \| BMS JB4 w/ ISO firmware \| BMS backend flash stacked on PPK \| Eibach springs \| Whiteline rear subframe bushing inserts \| cosmetic tidbits
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02-17-2015, 07:35 AM	#8
dcaron9999 Major 157 Rep 1,409 Posts Drives: 2011 135i M package Join Date: Jan 2010 Location: Mirabel, Quebec iTrader: (0)	Bought the n54tuning performance line DP myself a few months ago for under $280USD. Could not be happier. __________________ 2011 X3 35i with M pack + 2011 135i w/6SPMT \| 255 square tire setup \| Quaife 3.46 LSD \| Diff lock down bracket \| Bilstein B8+Swift SpecR springs+H&R FSB \| CDV delete \| BMS Oil Tstat bypass \| ER FMIC & CP \| N54Tuning DP \| GC Street Camber Plates \| M3 FCA +guide rods+RSFB's+Tranny mounts \| Manzo toe arms \| Cobb Stg2 agressive tune \| Hawk DTC70 brake pads \| RB SS brake pistons \| Goodridge SS brake lines \| Custom brake cooling ducts
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02-17-2015, 10:51 AM	#10
Solo_M_Tech Brigadier General 1688 Rep 3,140 Posts Drives: 2014 M5 6MT Join Date: Nov 2013 Location: Massachusetts iTrader: (7) Garage List 2014 BMW M5 [0.00]	I have the Megan Racing 4" catless downpipe and it works perfect. $320 bucks with free shipping. __________________ 2014 M5 6MT
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02-17-2015, 11:02 AM	#11
AK. Lieutenant 137 Rep 589 Posts Drives: E90 M3/E92 M3 Join Date: Jan 2015 Location: California iTrader: (3) Garage List 2010 E90 335i [10.00]	VRSF is the way to go!
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02-19-2015, 08:03 AM	#12
Cavpilot2k Chief Warrant Officer 1023 Rep 1,638 Posts Drives: like a damn lunatic Join Date: Feb 2012 Location: Boston iTrader: (0)	Any thoughts on the CP-E 5" DP? 5" seems excessive. Then I wonder, what about their high-flow cat? Perhaps with a 5" DP, the cat will provide less restriction than a high-flow cat on a 3" DP, so maybe some decent gains could be made even with a cat on their 5" DP. Just a thought. __________________ "Prius" is Latin for Eunuch. "Hrothgar": 2012 135i: 6MT M-Sport, BSM/Blk; Nav, Premium, Convenience, HK Dinan Stage 2 +PPK /// BMW PE /// VRSF CP /// K&N /// Koni Sports /// RSFB Inserts /// MPS4S 225/255 /// Other Stuff
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