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bobby1906 01-10-2013 06:27 PM

quiet muffler/ faster acceleration
Hey Guys,

Just bought my first car. Its An '88 325i. the muffler is loud and I want to know what other, quieter options are out there, and cost to put on my car. Also, the car accelerates pretty slow, you can feel the heavy drag when I press the gas. What can I do, if anything, to fix this?

Thanks Guys

BMWFatherFigure 01-10-2013 07:02 PM

Start with Insp2 service and a tune up. Then wheel alignment. If still bad performance get the injectors cleaned. If yours in a belt drive cam - change the belt if you are doubtful about it's age.

Titan_Omega 01-10-2013 10:06 PM

as far as quieter options you can always get a stock muffler from a junk yard there are always those there no one wants them. But if you dont want stock and are able to drop some cash id suggest surfing youtube under E30 exhaust and see what you like then get that

BigBoy740il 01-12-2013 04:24 PM

You can get an Bosal or Ansa rear muffler-little or no increased noise or benefits. The Eberspacher is an OEM option with a sporty tone, but still quiet. Supersprint gives you the benefits of stainless steel, sporty tone, and slight power increase. Many videos on youtube show E30s with Magnaflows mufflers. If you go that route, there is a fine line between increased noise (drowning), lower back pressure, and increased horse power. Losing too much back pressure can result in a loss of low end torque. This might be what you're feeling.

_Ethrty-Andy_ 01-12-2013 04:28 PM

muffler sounds is always subjective, and there may not be anything wrong with your current setup, it may just have a hole in the pipes.

+1 to what people said about acceleration "issue" but remember this is a 25 year old car, its not going to be quick anyways

e30325i 01-12-2013 05:16 PM


Originally Posted by _Ethrty-Andy_ (Post 7309018)
+1 to what people said about acceleration "issue" but remember this is a 25 year old car, its not going to be quick anyways

age is but a number doesnt mean it cant b quick

BMWFatherFigure 01-13-2013 03:36 AM

Making an old car 'quick' is just $'s. Fix brakes and suspension before 'quick'. Boreing but way safer.

e30325i 01-13-2013 08:01 AM

mine has a full exhaust to the headers havent changed them cat big cherry bomb/glasspack instead not sure which one thinking cherry but it makes my car sound nice with a deep tone

BMW lebanon 01-13-2013 10:50 PM

faster acceleration: shorter differential

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