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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > 335is Muffler



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      09-13-2018, 07:34 PM   #1
rborane
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335is Muffler

Anyone have a sound clip of the 335is mufflers on a N55?

Thinking about getting a used one for my e92 n55 (no secondary cats) and wanted to see how much louder than stock it would be...
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      10-24-2018, 05:36 PM   #2
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Originally Posted by rborane View Post
Anyone have a sound clip of the 335is mufflers on a N55?

Thinking about getting a used one for my e92 n55 (no secondary cats) and wanted to see how much louder than stock it would be...
I would assume it would sound like pe exhaust in an n55.
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      10-29-2018, 12:04 AM   #3
WeekendWarriorz
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335is muffler are the M performance exhaust mufflers, so sounds exactly the same as a n55 with PE just minus the resonators that are straight piped. 335is mufflers+ resonator delete= Performance exhaust
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      10-29-2018, 01:39 AM   #4
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Originally Posted by WeekendWarriorz View Post
335is muffler are the M performance exhaust mufflers, so sounds exactly the same as a n55 with PE just minus the resonators that are straight piped. 335is mufflers+ resonator delete= Performance exhaust
PE for E90 includes x-pipe to delete the resonators.
PE for E92/3 is just the end mufflers because all E92/3 already have x-pipes.
The only difference I see is that US version PE comes without a flap.
DME closes the flap during cold start and opens it above 3000 rpm so you hear less cold start noise and highway drone but just as throaty sound during spirited driving.
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