stock exhaust

EarlArlington · 10-26-2008, 09:03 AM

Does anyone know how much the stock exhaust weighs? I hear they are very heavy. Could we gain more hp/better MPG from a lighter after market exhaust?

wnta135 · 10-26-2008, 09:17 AM

No, any mpg gain due to lighter weight will be quickly erased due to the higher rpm while listening to said exhaust.

professor · 10-26-2008, 02:38 PM

this is a great question. i have not been able to find the answer to it either. really, anyone know how much it weighs?

10-26-2008, 09:03 AM	#1
EarlArlington Private 2 Rep 63 Posts Drives: Join Date: Sep 2008 iTrader: (0)	stock exhaust Does anyone know how much the stock exhaust weighs? I hear they are very heavy. Could we gain more hp/better MPG from a lighter after market exhaust?
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10-26-2008, 09:17 AM	#2
wnta135 Private First Class 2 Rep 194 Posts Drives: 2008 Sedona Red 135i Join Date: Nov 2007 Location: South Carolina iTrader: (0)	No, any mpg gain due to lighter weight will be quickly erased due to the higher rpm while listening to said exhaust.
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10-26-2008, 02:38 PM	#3
professor Major 46 Rep 1,473 Posts Drives: Z4 M40i Join Date: Mar 2008 iTrader: (0)	this is a great question. i have not been able to find the answer to it either. really, anyone know how much it weighs?
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