Downpipes

Arshdeep121 · 08-20-2017, 05:35 PM

Best downpipes for stock exhaust

mike@x-ph.com · 08-21-2017, 05:52 PM

Quote:

Originally Posted by Arshdeep121

Best downpipes for stock exhaust

Best for what?

Power? All downpipes will give you same power

Sound? Most catless will sound very similar

Fitment? All proven brands will fit like a glove + come with warranty againts defects

AR design Catless + resonators is my favorite

VRSF is our most popular choice

Jeff@TopGearSolutions · 08-24-2017, 10:10 AM

Great question and I concur, best for what?

saeedg48 · 08-24-2017, 02:24 PM

Quote:

Originally Posted by mike@x-ph.com

Best for what?

Power? All downpipes will give you same power

Sound? Most catless will sound very similar

Fitment? All proven brands will fit like a glove + come with warranty againts defects

AR design Catless + resonators is my favorite

VRSF is our most popular choice

I think what OP means is best overall.

danniexi · 08-24-2017, 02:48 PM

the cheapest you can find.

mike@x-ph.com · 08-24-2017, 02:50 PM

Quote:

Originally Posted by danniexi

the cheapest you can find.

That fits spot on without any leaks or rattle + made from good quality material so it does not fail a year after purchase

I had a 328 customer call me last week, he bought a cheap downpipe (known brand) and it ended up damaging his midpipe.

danniexi · 08-24-2017, 02:53 PM

Quote:

Originally Posted by mike@x-ph.com

That fits spot on without any leaks or rattle + made from good quality material so it does not fail a year from purchase

yeah that too.

OP, go with VRSF or buy a reputable set that are used.

emfo · 12-23-2017, 01:38 PM

Are M3 and M4 downpipes exactly the same? Interchangeable?

mike@x-ph.com · 12-23-2017, 04:37 PM

Quote:

Originally Posted by emfo

Are M3 and M4 downpipes exactly the same? Interchangeable?

Yes

Sleeper · 12-23-2017, 08:31 PM

Quote:

Originally Posted by Arshdeep121

Best downpipes for stock exhaust

TOTY. Got it in with only a week left.

VRSF. Done.

EALm4 · 12-24-2017, 08:50 AM

Quote:

Originally Posted by Arshdeep121

Best downpipes for stock exhaust

Quote:

Originally Posted by danniexi

the cheapest you can find.

For sure. Get a set of used VRSF for cheap.

bracer · 12-24-2017, 09:43 AM

One thing on downpipes that always has made me wonder. All of them neck down to less than 3" to meet up with the stock exhaust. If someone is using an aftermarket exhaust it goes from a 3+ downpipe to a stock diameter, and then back u to whatever the aftermarket is. It probably makes no HP difference at all, but still bugs me.

5soko · 12-24-2017, 10:31 AM

Find one that has the flex/expansion joint like the OEM DP's..

F80Moe · 12-24-2017, 01:11 PM

Just installed

Active Autowerkes catless DP.

Price is good and the plus is it having a flex joint. Fitment was spot on and the sound is just pure race car

Quick vid

gatorfast · 12-24-2017, 07:35 PM

VRSF

stealth-twntrbo · 12-24-2017, 10:10 PM

Quote:

Originally Posted by gatorfast

VRSF

ER is what I had they were great

mike@x-ph.com · 12-26-2017, 05:16 PM

Quote:

Originally Posted by F80Moe

Just installed

Active Autowerkes catless DP.

Price is good and the plus is it having a flex joint. Fitment was spot on and the sound is just pure race car

Nice!!

SanchoDivine · 12-27-2017, 12:32 PM

Quote:

Originally Posted by F80Moe

Just installed

Active Autowerkes catless DP.

Price is good and the plus is it having a flex joint. Fitment was spot on and the sound is just pure race car

Quick vid

I would also like to add that the flex joint may be extra important to those looking to do aftermarket midpipe in the future. Had it not be for the flex points in the OEM downpipes, I might not have been able to install my Fabspeed midpipe (which makes the car sound much better).

LOW4LYF · 12-27-2017, 12:48 PM

Quote:

Originally Posted by SanchoDivine

I would also like to add that the flex joint may be extra important to those looking to do aftermarket midpipe in the future. Had it not be for the flex points in the OEM downpipes, I might not have been able to install my Fabspeed midpipe (which makes the car sound much better).

Tons of users having dp without flext and mid pipe installed?

SanchoDivine · 12-27-2017, 12:54 PM

Quote:

Originally Posted by Figurka

Quote:

Originally Posted by SanchoDivine

I would also like to add that the flex joint may be extra important to those looking to do aftermarket midpipe in the future. Had it not be for the flex points in the OEM downpipes, I might not have been able to install my Fabspeed midpipe (which makes the car sound much better).

Tons of users having dp without flext and mid pipe installed?

Just extra insurance. AA said they did this because if vibration but this will definitely help with installation of other aftermarket exhaust pipes. I'm on the fence about removing the cats but if I were to get a set, it would be AA's or Akrapovic due to the flex portion.

tom @ eas · 12-27-2017, 01:00 PM

Quote:

Originally Posted by Figurka

Tons of users having dp without flext and mid pipe installed?

Tons with no issues.

ER has been there since the beginning, we're very happy with quality and fitment.

5soko · 12-27-2017, 01:39 PM

Quote:

Originally Posted by SanchoDivine

Quote:

Originally Posted by Figurka

Quote:

Originally Posted by SanchoDivine

I would also like to add that the flex joint may be extra important to those looking to do aftermarket midpipe in the future. Had it not be for the flex points in the OEM downpipes, I might not have been able to install my Fabspeed midpipe (which makes the car sound much better).

Tons of users having dp without flext and mid pipe installed?

Just extra insurance. AA said they did this because if vibration but this will definitely help with installation of other aftermarket exhaust pipes. I'm on the fence about removing the cats but if I were to get a set, it would be AA's or Akrapovic due to the flex portion.

The the type of flex section akrapovic, bmw and AA uses not only flexes left and right, but in and out.. As mentioned helps with install, heat expansion, and vibration.

08-20-2017, 05:35 PM	#1
Arshdeep121 Private First Class 12 Rep 109 Posts Drives: F80 M3 Join Date: Nov 2016 Location: New Jersey iTrader: (0)	Downpipes Best downpipes for stock exhaust
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08-24-2017, 10:10 AM	#3
Jeff@TopGearSolutions 3441 Rep 79,212 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Great question and I concur, best for what?
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08-24-2017, 02:48 PM	#5
danniexi Brigadier General 3052 Rep 4,387 Posts Drives: 2022 F97 X3M Comp LCI Join Date: May 2008 Location: NJ/NY iTrader: (15) Garage List 2022 BMW X3M Compet ... [10.00] 2016 BMW F80 M3 [10.00]	the cheapest you can find. __________________ BMW MY22 F97 X3MC LCI - CURRENT BUILD THREAD\| Instagram: @danniexi BMW MY16 F80 M3 - GONE BMW MY08 E92 335XI - GONE BMW MY06 E46 325XI - GONE
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12-23-2017, 01:38 PM	#8
emfo 62 Rep 474 Posts Drives: TT Join Date: Mar 2013 Location: LA iTrader: (20)	Are M3 and M4 downpipes exactly the same? Interchangeable?
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12-24-2017, 09:43 AM	#12
bracer Mr Bill 296 Rep 545 Posts Drives: GLC63 Join Date: Sep 2013 Location: Aliso Viejo iTrader: (1)	One thing on downpipes that always has made me wonder. All of them neck down to less than 3" to meet up with the stock exhaust. If someone is using an aftermarket exhaust it goes from a 3+ downpipe to a stock diameter, and then back u to whatever the aftermarket is. It probably makes no HP difference at all, but still bugs me.
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12-24-2017, 10:31 AM	#13
5soko Brigadier General 332 Rep 4,632 Posts Drives: M5 Join Date: Aug 2007 Location: Brooklyn, NY iTrader: (4)	Find one that has the flex/expansion joint like the OEM DP's.. __________________ Current: E63S AMG 4matic RENNtech \|\| M5 Evolve..Eventuri \|\| F10 LCI 535i MHD
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12-24-2017, 01:11 PM	#14
F80Moe Lieutenant 279 Rep 435 Posts Drives: 2016 F80 M3 6spd Join Date: Dec 2016 Location: Kuwait iTrader: (0)	Just installed Active Autowerkes catless DP. Price is good and the plus is it having a flex joint. Fitment was spot on and the sound is just pure race car Quick vid Attached Images __________________ '16 F80 M3 6M/T (sold) '20 Toyota Supra Last edited by F80Moe; 12-24-2017 at 01:45 PM..
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12-24-2017, 07:35 PM	#15
gatorfast Major General 4992 Rep 6,860 Posts Drives: 718 Cayman Join Date: Jan 2008 Location: SoFla iTrader: (4)	VRSF
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