335i Muffler tips

Bimmer07 · 11-17-2012, 05:23 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, 05:28 PM

No, you're fine

J02 335i · 11-17-2012, 06:23 PM

Make sure you plug off the vacuum line.

omega145 · 11-17-2012, 07:21 PM

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

Wolf 335 · 11-17-2012, 07:35 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, 08:28 PM

Thanks!

Lankster · 11-17-2012, 09:41 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, 09:52 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, 07:54 PM

Seems like its a little louder now

Or its a placebo effect lol

AndyR83 · 11-18-2012, 09:06 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, 09:14 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, 01:39 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, 03:01 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, 05:23 PM	#1
Bimmer07 Lieutenant 282 Rep 497 Posts Drives: G80 Join Date: Nov 2012 Location: Los Angeles 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, 05:28 PM	#2
Slow_335i Daily Driven! 184 Rep 2,516 Posts Drives: BMW 335i Join Date: Jun 2011 Location: Central Illinois iTrader: (11) Garage List 2008 BMW 335I [7.02]	No, you're fine __________________
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11-17-2012, 06:23 PM	#3
J02 335i Lieutenant Colonel 39 Rep 1,558 Posts Drives: F80 M3 Join Date: Aug 2010 Location: Ontario iTrader: (1)	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, Borla catback
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11-17-2012, 07:21 PM	#4
omega145 Second Lieutenant 88 Rep 235 Posts Drives: 2016 M235 Xdrive Join Date: Nov 2012 Location: Long Island, NY iTrader: (1)	I don't think its a big deal since having the entire exhaust replaced would remove this anyway.
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11-17-2012, 07:35 PM	#5
Wolf 335 Brigadier General 2341 Rep 3,539 Posts Drives: 2007 E92 335i Join Date: Aug 2012 Location: GTA - Greater Toronto Area 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
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11-17-2012, 08:28 PM	#6
Bimmer07 Lieutenant 282 Rep 497 Posts Drives: G80 Join Date: Nov 2012 Location: Los Angeles iTrader: (1)	Thanks!
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11-18-2012, 07:54 PM	#9
Bimmer07 Lieutenant 282 Rep 497 Posts Drives: G80 Join Date: Nov 2012 Location: Los Angeles iTrader: (1)	Seems like its a little louder now Or its a placebo effect lol
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11-18-2012, 09:06 PM	#10
AndyR83 Major 60 Rep 1,024 Posts Drives: E92 335i FBO Join Date: Oct 2011 Location: PA 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 IAN HAAN, aka n54bewst, aka 747tuned aka H17M3, a scammer who STILL has an account here on e90post!
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11-18-2012, 09:14 PM	#11
Bimmer07 Lieutenant 282 Rep 497 Posts Drives: G80 Join Date: Nov 2012 Location: Los Angeles 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.
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11-19-2012, 01:39 PM	#12
vapore0n Captain 40 Rep 669 Posts Drives: 2010 335i Join Date: Jul 2011 Location: MA 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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11-19-2012, 03:01 PM	#13
Lankster Sigma Alpha Epsilon 38 Rep 425 Posts Drives: 2007 335xi Join Date: Apr 2012 Location: Encinitas iTrader: (1)	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
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