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General E46 Forum
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Old 09-11-2015, 11:31 PM   #1
Nolans328ci
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Exhaust size

I'm about to buy an aftermarket performance muffler. I have a 2000 328ci. Just curious if anyone could tell me the correct inlet size to buy. Thanks
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Old 09-12-2015, 03:46 PM   #2
6th Element
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Inlet should be 2 inches
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Old 09-13-2015, 04:27 PM   #3
e46onmeth
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Inlet should be 2 inches

Are you sure that's correct I just cut my muffler off and welded a 2.5" pipe on my 330ci the inlet was 2.5" is it different for the 328?
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Old 09-14-2015, 02:55 PM   #4
Nolans328ci
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Yeah I'd think the 330 is the same as the 328 since it's almost the same size engine. Also most of the after market mufflers say 2.5 or 2.25 inch inlet
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Old 09-14-2015, 07:26 PM   #5
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Okay I just went and measured it its 2.25
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Old 09-14-2015, 07:48 PM   #6
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Originally Posted by Nolans328ci View Post
Okay I just went and measured it its 2.25
Before you purchase, post up links to possible mufflers.


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Old 01-30-2016, 01:32 AM   #7
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Any opinions?

https://jet.com/product/detail/23d90...PjsRoCjQrw_wcB

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Old 01-30-2016, 12:45 PM   #8
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That's a nice quality muffler, it of course will require welding to get it installed properly.



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Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I Know How To Fix The Rear "Bouncing" Problem On Your Cheap Coilovers Like: Jom RL FK SE & RK.
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Old 01-30-2016, 04:59 PM   #9
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That's a nice quality muffler, it of course will require welding to get it installed properly.







Rob43

Thanks Rob! I plan to have it installed anyway.

I appreciate the confirmation. The cheap mufflers don't give a lot of information regarding fitment.
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