E93 335i Exhaust Mod Options Other Than a Full System

j_smitty218 · 04-30-2015, 04:15 PM

Hey there, I'm looking into modifying the exhaust on my 335i, but I don't want to spend the money on an entire exhaust system. I can't seem to find any information on mufflers, and I was wondering if anyones had any experience using aftermarket mufflers. Any advice would be appreciated!

(Also I've heard about doing a muffler delete and that sounds good, but I'm worried about passing inspection, and I can't seem to find any info on that either. Does this affect emissions much or is the change in noise level ridiculously drastic?)

Thanks again

msjt · 04-30-2015, 04:28 PM

Stock mufflers, golf tee, and downpipes; sounds great

tc535i · 04-30-2015, 04:29 PM

Quote:

Originally Posted by msjt

Stock mufflers, golf tee, and downpipes; sounds great

this is my setup, no complaints

Rich- · 04-30-2015, 08:27 PM

are the stock mufflers restrictive? I know probably HP per dollar isn't worth the gains but are there any real gains for a catback?

j_smitty218 · 04-30-2015, 09:51 PM

Quote:

Originally Posted by msjt

Stock mufflers, golf tee, and downpipes; sounds great

What downpipes would you suggest?

sirdaft1 · 04-30-2015, 10:50 PM

Quote:

Originally Posted by Rich-

are the stock mufflers restrictive? I know probably HP per dollar isn't worth the gains but are there any real gains for a catback?

Do anything past the DP's on these would be more about sound than performance.

dbworld4k · 04-30-2015, 11:19 PM

DPs and PE muffler mod.

Team503 · 05-01-2015, 01:17 PM

I have a catted downpipe and the harness unplugged for the active exhaust - sounds great. Still reasonably quiet at idle, but when you get in the throttle its plenty loud.

mike@x-ph.com · 05-01-2015, 05:19 PM

Quote:

Originally Posted by j_smitty218

Hey there, I'm looking into modifying the exhaust on my 335i, but I don't want to spend the money on an entire exhaust system. I can't seem to find any information on mufflers, and I was wondering if anyones had any experience using aftermarket mufflers. Any advice would be appreciated!

(Also I've heard about doing a muffler delete and that sounds good, but I'm worried about passing inspection, and I can't seem to find any info on that either. Does this affect emissions much or is the change in noise level ridiculously drastic?)

Thanks again

Stock mufflers
Golf tee
VRSF Catless Downpipes

solidaudio1 · 05-01-2015, 10:14 PM

Catless DP's sound great. I just got VRSF installed, everything else in exhaust is stock. Not too loud, no drone, but when you get on it, sounds beautiful. With the top down it's awesome.

trohde78 · 05-02-2015, 09:02 AM

All of the above, but substitute simply unplugging the harness for the muffler flap rather than using an actual "golf tee".

04-30-2015, 04:15 PM	#1
j_smitty218 New Member 0 Rep 5 Posts Drives: e93 335i Join Date: Dec 2014 Location: USA iTrader: (0)	E93 335i Exhaust Mod Options Other Than a Full System Hey there, I'm looking into modifying the exhaust on my 335i, but I don't want to spend the money on an entire exhaust system. I can't seem to find any information on mufflers, and I was wondering if anyones had any experience using aftermarket mufflers. Any advice would be appreciated! (Also I've heard about doing a muffler delete and that sounds good, but I'm worried about passing inspection, and I can't seem to find any info on that either. Does this affect emissions much or is the change in noise level ridiculously drastic?) Thanks again
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04-30-2015, 04:28 PM	#2
msjt First Lieutenant 160 Rep 305 Posts Drives: e92 335i Join Date: Jan 2013 Location: queens, nyc iTrader: (0)	Stock mufflers, golf tee, and downpipes; sounds great
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04-30-2015, 08:27 PM	#4
Rich- Private First Class 12 Rep 138 Posts Drives: 2010 335xi 06 A3 S-line 3.2 Join Date: Jan 2015 Location: Sioux Falls SD iTrader: (3)	are the stock mufflers restrictive? I know probably HP per dollar isn't worth the gains but are there any real gains for a catback?
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04-30-2015, 11:19 PM	#7
dbworld4k Banned 585 Rep 2,233 Posts Drives: '12 M3 Join Date: Mar 2008 Location: YYZ iTrader: (5) Garage List 2002 BMW M5 [10.00] 2009 BMW 335i [10.00]	DPs and PE muffler mod.
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05-01-2015, 01:17 PM	#8
Team503 Nerd 125 Rep 437 Posts Drives: 2009 335i Sport/Auto/Luxury Join Date: Jul 2013 Location: Dublin iTrader: (5)	I have a catted downpipe and the harness unplugged for the active exhaust - sounds great. Still reasonably quiet at idle, but when you get in the throttle its plenty loud. __________________ 2009 E92 335i Sport 6AT - Finished, sold Transport for Ireland - LEAP Pass with TFI smartapp because cars are stupid expensive in Ireland
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05-01-2015, 10:14 PM	#10
solidaudio1 Private First Class 17 Rep 143 Posts Drives: 2008 335i E93 vert Join Date: Jun 2013 Location: NH iTrader: (1)	Catless DP's sound great. I just got VRSF installed, everything else in exhaust is stock. Not too loud, no drone, but when you get on it, sounds beautiful. With the top down it's awesome.
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05-02-2015, 09:02 AM	#11
trohde78 Captain 74 Rep 719 Posts Drives: 2007 e92 335i 6MT Join Date: Apr 2013 Location: Chicago Suburbs iTrader: (6)	All of the above, but substitute simply unplugging the harness for the muffler flap rather than using an actual "golf tee".
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