Would you...

Talor · 01-09-2012, 02:00 PM

Would you buy an exhaust system if it wasn't mandrel bent?

Kyoshi71 · 01-09-2012, 02:05 PM

no

Talor · 01-09-2012, 02:08 PM

Maybe I shouldve added an "and why" lol

jwarner · 01-09-2012, 02:55 PM

I guess my question back would be, "Why would you buy an exhaust system that is not mandrel bent?".

My guess is it would be better to stick with the OEM unit.

THE TECH · 01-09-2012, 02:56 PM

Why are we asking this question? What system out there is made that isn't mandrel bent?

GIdriver · 01-09-2012, 03:10 PM

A mandrel bent tube retains its original diameter at the bends. In a non-mandrel bent tube a "kink" forms at the bend, therefore decreasing diameter. In an exhaust system this "kink" defeats the purpose of improved flow, creates more turbulence, etc. Hope this helps. Perhaps someone can elaborate more. And no, I woud not buy non-mandrel bent.

GIdriver · 01-09-2012, 03:24 PM

Quote:

Originally Posted by THE TECH

Why are we asking this question? What system out there is made that isn't mandrel bent?

Quote:

Originally Posted by SehrSchnell

+1! This.

Dunno, perhaps the OP is considering a custom made exhaust?

THE TECH · 01-09-2012, 03:40 PM

Quote:

Originally Posted by GIdriver

Dunno, perhaps the OP is considering a custom made exhaust?

Everyone wants to reinvent the wheel.

jwarner · 01-09-2012, 03:47 PM

It's a slow news day on BimmerPost.com

Grail05 · 01-09-2012, 04:02 PM

Quote:

Originally Posted by THE TECH

Why are we asking this question? What system out there is made that isn't mandrel bent?

probably some muffler shop... they are good at making non mandrel exhaust.

01-09-2012, 02:00 PM	#1
Talor First Lieutenant 30 Rep 337 Posts Drives: BMW E90 ///M3 Join Date: Dec 2009 Location: Los Angeles iTrader: (0)	Would you... Would you buy an exhaust system if it wasn't mandrel bent?
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01-09-2012, 02:05 PM	#2
Kyoshi71 Colonel 93 Rep 2,528 Posts Drives: 2010 M3 Coupe Join Date: Jul 2006 Location: New York iTrader: (0)	no __________________ "But resist we much; we must; and we will much; about that be committed." ~Rev. Al Sharpton 2010 E92 M3\|Silverstone II\|M-DCT\|NCSW\|2MT\|ZCW\|ZPP\|ZTP\|302\|507\|Gas Guzzler Tax
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01-09-2012, 02:08 PM	#3
Talor First Lieutenant 30 Rep 337 Posts Drives: BMW E90 ///M3 Join Date: Dec 2009 Location: Los Angeles iTrader: (0)	Maybe I shouldve added an "and why" lol
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01-09-2012, 02:55 PM	#4
jwarner Private 6 Rep 87 Posts Drives: 2011 E92 Alpine White ZCP Join Date: May 2011 Location: Bend, OR iTrader: (2)	I guess my question back would be, "Why would you buy an exhaust system that is not mandrel bent?". My guess is it would be better to stick with the OEM unit. __________________ Jason - Bend, OR 2011.5 E92 - Alpine White DCT ZCP Dinan: Exhaust, Intake, ECU, UD Pulley, Pedals; AFE: Air Scoops;
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01-09-2012, 02:56 PM	#5
THE TECH BimmerPost Supporting Vendor 307 Rep 13,093 Posts Drives: BPMsport 2012 E92 M3 Join Date: Jun 2011 Location: Kansas iTrader: (45) Garage List 2013 Nissan GTR [0.00] 2019 Sierra Denali ... [0.00] 1999 Nissan Silvia [0.00] 1999 Nissan Skyline ... [0.00] 1998 Toyota Supra [0.00]	Why are we asking this question? What system out there is made that isn't mandrel bent?
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01-09-2012, 03:10 PM	#6
GIdriver Major 68 Rep 1,359 Posts Drives: 2014 E63 AMG-S Join Date: Dec 2010 Location: Somewhere in Time iTrader: (0)	A mandrel bent tube retains its original diameter at the bends. In a non-mandrel bent tube a "kink" forms at the bend, therefore decreasing diameter. In an exhaust system this "kink" defeats the purpose of improved flow, creates more turbulence, etc. Hope this helps. Perhaps someone can elaborate more. And no, I woud not buy non-mandrel bent.
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01-09-2012, 03:47 PM	#9
jwarner Private 6 Rep 87 Posts Drives: 2011 E92 Alpine White ZCP Join Date: May 2011 Location: Bend, OR iTrader: (2)	It's a slow news day on BimmerPost.com __________________ Jason - Bend, OR 2011.5 E92 - Alpine White DCT ZCP Dinan: Exhaust, Intake, ECU, UD Pulley, Pedals; AFE: Air Scoops;
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