Muffler Delete

mason.m4_ · 10-14-2019, 10:21 AM

Looking for thoughts on how a catless downpipe 435 sounds with a muffler delete. Along with good muffler bypass options that aren't 800 bucks. I'm not happy with how quite the car is while idling that's why I've been thinking about a muffler delete what are your thoughts?

n55david · 10-14-2019, 11:04 AM

....loud

mike@x-ph.com · 10-14-2019, 11:58 AM

Quote:

Originally Posted by Phantom10R

....loud

and drones which is not a good combination.

If you have catless, i recommend getting an axle back.

Active Autowerke axle back is very popular for us and is very reasonably priced.

TSA8151 · 10-14-2019, 12:09 PM

My 335i has a catless dp, muffler delete, with stock mid pipe. Its loud, neighbors will hear cold starts. Idle and cruising speed is actually fairly tame, but once you get on the throttle it sounds so good. Iv'e been trying to get a good video of the exhaust note on my phone, but my phone can't handle the volume.

n55david · 10-14-2019, 12:39 PM

Quote:

Originally Posted by TSA8151

My 335i has a catless dp, muffler delete, with stock mid pipe. Its loud, neighbors will hear cold starts. Idle and cruising speed is actually fairly tame, but once you get on the throttle it sounds so good. Iv'e been trying to get a good video of the exhaust note on my phone, but my phone can't handle the volume.

Stock mid pipe really helps with drone and such.

mason.m4_ · 10-14-2019, 04:47 PM

Quote:

Originally Posted by mike@x-ph.com

Quote:

Originally Posted by Phantom10R

....loud

and drones which is not a good combination.

If you have catless, i recommend getting an axle back.

Active Autowerke axle back is very popular for us and is very reasonably priced.

Quote:

Originally Posted by mike@x-ph.com

Quote:

Originally Posted by Phantom10R

....loud

and drones which is not a good combination.

If you have catless, i recommend getting an axle back.

Active Autowerke axle back is very popular for us and is very reasonably priced.

Would love to get an axel back but I don't see the point in spending $1,000 or more on it when I don't mind drone or the car being loud.

mason.m4_ · 10-14-2019, 04:48 PM

Quote:

Originally Posted by TSA8151

My 335i has a catless dp, muffler delete, with stock mid pipe. Its loud, neighbors will hear cold starts. Idle and cruising speed is actually fairly tame, but once you get on the throttle it sounds so good. Iv'e been trying to get a good video of the exhaust note on my phone, but my phone can't handle the volume.

Quote:

Originally Posted by mike@x-ph.com

Quote:

Originally Posted by Phantom10R

....loud

and drones which is not a good combination.

If you have catless, i recommend getting an axle back.

Active Autowerke axle back is very popular for us and is very reasonably priced.

Quote:

Originally Posted by TSA8151

My 335i has a catless dp, muffler delete, with stock mid pipe. Its loud, neighbors will hear cold starts. Idle and cruising speed is actually fairly tame, but once you get on the throttle it sounds so good. Iv'e been trying to get a good video of the exhaust note on my phone, but my phone can't handle the volume.

Sounds exactly like what I'm looking for thanks for the input! If you ever do get a sound clip send it my way please!

Tchao · 10-14-2019, 05:39 PM

The stock muffler is straight through flow, and has handled over 600whp with big turbo kits. Just some food for thought.

thejeremyman9 · 10-14-2019, 05:42 PM

Quote:

Originally Posted by Tchao

The stock muffler is straight through flow, and has handled over 600whp with big turbo kits. Just some food for thought.

This. Stock exhaust design is quite efficient.

If you just want more volume, modify the stock muffler for "free".
https://f30.bimmerpost.com/forums/sh...d.php?t=819125

Finn Germai-Yaz · 10-15-2019, 10:41 AM

I thought a muffler delete was cool until I did it. The drone is really bad. Try a resonator delete first.

10-14-2019, 10:21 AM	#1
mason.m4_ Enlisted Member 0 Rep 31 Posts Drives: 2015 F82 BMW Join Date: Aug 2019 Location: Denver CO iTrader: (0)	Muffler Delete Looking for thoughts on how a catless downpipe 435 sounds with a muffler delete. Along with good muffler bypass options that aren't 800 bucks. I'm not happy with how quite the car is while idling that's why I've been thinking about a muffler delete what are your thoughts?
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10-14-2019, 11:04 AM	#2
n55david Check out my Youtube @n55david! 1296 Rep 3,533 Posts Drives: 2017 m240i, 2015 X3 x35i Join Date: Aug 2018 Location: Michigan USA iTrader: (0) Garage List 2017 m240i xDrive [0.00] 2015 X3 x35i [0.00] 2015 335i xdrive [0.00]	....loud __________________ 2017 m240i xDrive 10.99@122.86mph bootmod3 stage 2+ ots 2015 335i xDrive 10.95@124.99mph w/bm3 - SOLD 2015 X3 x35i pwg 12.96 catless w/bm3 stage 2 93 ots IG: @n55david For pics and updates! Youtube: @ n55david For videos or Racing etc
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10-14-2019, 12:09 PM	#4
TSA8151 Private First Class 58 Rep 141 Posts Drives: 2013 F30 335i msport Join Date: Jul 2018 Location: Maryland iTrader: (0)	My 335i has a catless dp, muffler delete, with stock mid pipe. Its loud, neighbors will hear cold starts. Idle and cruising speed is actually fairly tame, but once you get on the throttle it sounds so good. Iv'e been trying to get a good video of the exhaust note on my phone, but my phone can't handle the volume.
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10-14-2019, 05:39 PM	#8
Tchao Boost Addict 334 Rep 349 Posts Drives: E30, E82, F30, F87 Join Date: Feb 2015 Location: Charleston iTrader: (0)	The stock muffler is straight through flow, and has handled over 600whp with big turbo kits. Just some food for thought. __________________ S55 M2C \| Three Pedal Club \| E30TU
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10-15-2019, 10:41 AM	#10
Finn Germai-Yaz Private First Class 218 Rep 148 Posts Drives: 2017 M240i Join Date: Jan 2019 Location: Las Vegas iTrader: (0)	I thought a muffler delete was cool until I did it. The drone is really bad. Try a resonator delete first.
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