335i Muffler tips - BMW 3-Series (E90 E92) Forum

Bimmer07 · 11-17-2012, 06:23 PM

Hi guys i left my car at a muffler shop to install Dimisa tips today. When I came back he had it installed already and i noticed that he cut the flapper part also. So the whole valve thing or whatever is gone now . Is this a problem?

Slow_335i · 11-17-2012, 06:28 PM

No, you're fine

J02 335i · 11-17-2012, 07:23 PM

Make sure you plug off the vacuum line.

omega145 · 11-17-2012, 08:21 PM

I don't think its a big deal since having the entire exhaust replaced would remove this anyway.

Wolf 335 · 11-17-2012, 08:35 PM

Mechaninically it is not a problem but when on the highway you will drone like crazy.

If that doesnt bother you then its ok

Bimmer07 · 11-17-2012, 09:28 PM

Thanks!

Lankster · 11-17-2012, 10:41 PM

Quote:

Originally Posted by Wolf 335

Mechaninically it is not a problem but when on the highway you will drone like crazy.

If that doesnt bother you then its ok

If he has OEM exhaust it wont drone like crazy... The flaps open once the cats are warm even when they are on and plugged in... If you wanna hear drone drive in a Muffler delete

Eric335 · 11-17-2012, 10:52 PM

Quote:

Originally Posted by Lankster

If he has OEM exhaust it wont drone like crazy... The flaps open once the cats are warm even when they are on and plugged in... If you wanna hear drone drive in a Muffler delete

This^

Once up to temperature, they dont make a difference. It just stops the car from being so bassy/loud on cold starts.

Bimmer07 · 11-18-2012, 08:54 PM

Seems like its a little louder now

Or its a placebo effect lol

AndyR83 · 11-18-2012, 10:06 PM

Mine is a roaring monster when I start it at 5am on a cold morning, but it's back to normal by the time I get on the highway 5 minutes later

Bimmer07 · 11-18-2012, 10:14 PM

Guys one more thing. My car is sparkling graphite and I got an OEM aero trunk spoiler in the same color but Im wondering if i should paint it black because my muffler tips are black and im powdercoating my rims next week to black.

vapore0n · 11-19-2012, 02:39 PM

Mine drones like crazy on highway. This is automatic, which makes it even worse as the car tries to stay as low in the revs as possible. Flaps seem to open based on throttle, even when the car is warm already.

Lankster · 11-19-2012, 04:01 PM

The car should open the flap once it is warm. Yes it will be much louder on cold starts, but that is true with EVERY car, even a prius... Personally, I like the loud sound. I unplugged my actuator in my trunk so it always stays open. Long term I want a BMW PE. But for now this satisfies. If you want a quieter exhaust, I dont know how to help you except to get a 328.

11-17-2012, 06:23 PM	#1
Bimmer07 Private First Class Drives: E92 335i Join Date: Nov 2012 Location: Los Angeles Posts: 171 iTrader: (1)	335i Muffler tips Hi guys i left my car at a muffler shop to install Dimisa tips today. When I came back he had it installed already and i noticed that he cut the flapper part also. So the whole valve thing or whatever is gone now . Is this a problem?
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11-17-2012, 06:28 PM	#2
Slow_335i Daily Driven! Drives: BMW 335i Join Date: Jun 2011 Location: Peoria IL Posts: 2,429 iTrader: (11) Garage List 2008 BMW 335I [3.32]	No, you're fine __________________

11-17-2012, 07:23 PM	#3
J02 335i Major Drives: E90 335i Join Date: Aug 2010 Location: Ontario Posts: 1,494 iTrader: (0)	Make sure you plug off the vacuum line. __________________ Sport pack, JB3, Dci, factory oil cooler, 18" M3 reps, Michelin PSS, painted trim, black grills, smoked side markers, LED plate lights, H&R coils, muffler delete

11-18-2012, 10:06 PM	#10
AndyR83 Lieutenant Drives: E92 335i FBO Join Date: Oct 2011 Location: PA Posts: 587 iTrader: (5)	Mine is a roaring monster when I start it at 5am on a cold morning, but it's back to normal by the time I get on the highway 5 minutes later __________________ Do NOT do business with driftbrick744 aka Ian Haan!!!

11-19-2012, 04:01 PM	#13
Lankster Sigma Alpha Epsilon Drives: 2007 335xi Join Date: Apr 2012 Location: Encinitas Posts: 341 iTrader: (0)	The car should open the flap once it is warm. Yes it will be much louder on cold starts, but that is true with EVERY car, even a prius... Personally, I like the loud sound. I unplugged my actuator in my trunk so it always stays open. Long term I want a BMW PE. But for now this satisfies. If you want a quieter exhaust, I dont know how to help you except to get a 328. __________________ Forum Bible http://www.albinoblacksheep.com/flash/posting JB4, BMS DCI, Dimisa 4" tips, VMR 710 Matt Black, Plasti-Dip Mod

11-17-2012, 08:21 PM	#4
omega145 Registered Drives: 08 BMW 335XI Join Date: Nov 2012 Location: Long Island, NY Posts: 4 iTrader: (1)	I don't think its a big deal since having the entire exhaust replaced would remove this anyway.

11-17-2012, 08:35 PM	#5
Wolf 335 First Lieutenant Drives: 335i Join Date: Aug 2012 Location: GTA Posts: 340 iTrader: (0)	Mechaninically it is not a problem but when on the highway you will drone like crazy. If that doesnt bother you then its ok

11-17-2012, 09:28 PM	#6
Bimmer07 Private First Class Drives: E92 335i Join Date: Nov 2012 Location: Los Angeles Posts: 171 iTrader: (1)	Thanks!

11-18-2012, 08:54 PM	#9
Bimmer07 Private First Class Drives: E92 335i Join Date: Nov 2012 Location: Los Angeles Posts: 171 iTrader: (1)	Seems like its a little louder now Or its a placebo effect lol

11-18-2012, 10:14 PM	#11
Bimmer07 Private First Class Drives: E92 335i Join Date: Nov 2012 Location: Los Angeles Posts: 171 iTrader: (1)	Guys one more thing. My car is sparkling graphite and I got an OEM aero trunk spoiler in the same color but Im wondering if i should paint it black because my muffler tips are black and im powdercoating my rims next week to black.

11-19-2012, 02:39 PM	#12
vapore0n Second Lieutenant Drives: 2010 335i Join Date: Jul 2011 Location: MA Posts: 276 iTrader: (0)	Mine drones like crazy on highway. This is automatic, which makes it even worse as the car tries to stay as low in the revs as possible. Flaps seem to open based on throttle, even when the car is warm already.

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