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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 01-11-2013, 12:39 PM
87bmw e30 87bmw e30 is offline
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Location: Washington
 
Join Date: Jan 2013
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Mein Auto: 1987 bmw 325e
325e low flow muffler

My 325e has 230k miles and it is to quiet, i bought a $30 low resistance dtm muffler from ebay, i was just wondering if i put this on will it increase power or gas mileage? Also is it bad for the engine? Thanks
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  #2  
Old 01-11-2013, 03:46 PM
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downhiller downhiller is offline
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Location: des moines
 
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Mein Auto: 2012 hypermotard 796
performance, no. gas mileage, no. louder, probably.

for performance you got to do both intake and exhaust, to do anything noticeable. and changing a muffler is changing exhaust, like doing a cat back or full exhaust.
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Old 01-11-2013, 08:02 PM
87bmw e30 87bmw e30 is offline
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Mein Auto: 1987 bmw 325e
Thanks, will it harm the engine in any way?
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Old 01-11-2013, 11:01 PM
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downhiller downhiller is offline
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itll help the engine rev a tid bit quicker. but as long as the cat is still installed and flowing freely, no damage will be caused
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