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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Need more sound!



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      07-09-2012, 10:40 PM   #1
GOTMH8N
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Need more sound!

Ok so I just picked up my 07 335 and it has magnaflow mufflers on stock exhaust but it is just too quite under WOT my goodness! What would be my best/fastest option to get some more sound; cutting off mufflers for straight pipe or adding hi flow cat? I don't need it to sound like a race car but I would like to hear something at WOT lol

any ideas?

I know guys have removed all cats leaving stock mufflers but sounded a bit raspy to me
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      07-09-2012, 10:44 PM   #2
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Catless DP, remove cats and remove mufflers = FULL STRAIGHT (:
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      07-09-2012, 10:55 PM   #3
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Quote:
Originally Posted by LBCC562 View Post
Catless DP, remove cats and remove mufflers = FULL STRAIGHT (:
nooooo lol I am not touching DPs anytime soon my friend lol
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      07-09-2012, 11:07 PM   #4
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Quote:
Originally Posted by GOTMH8N
Quote:
Originally Posted by LBCC562 View Post
Catless DP, remove cats and remove mufflers = FULL STRAIGHT (:
nooooo lol I am not touching DPs anytime soon my friend lol
Cutouts
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      07-09-2012, 11:18 PM   #5
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will cutting off the magnaflow mufflers sound good?
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      07-09-2012, 11:29 PM   #6
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Quote:
Originally Posted by GOTMH8N
will cutting off the magnaflow mufflers sound good?
Just put two cutouts near muffler and you can pick when u want loud
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      07-09-2012, 11:34 PM   #7
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Quote:
Originally Posted by neilvosko View Post
Just put two cutouts near muffler and you can pick when u want loud
ohhhhhhhhh I see, very interesting. I'll look into that, thank you!
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      07-09-2012, 11:50 PM   #8
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ohhhhhhhhh I see, very interesting. I'll look into that, thank you!
cut outs leak/break and never provide a solid seal.

just do a muffler delete or a 2ndcat/resonator delete
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      07-10-2012, 12:49 AM   #9
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Quote:
Originally Posted by GOTMH8N View Post
will cutting off the magnaflow mufflers sound good?
I had just the muffler delete before and when the car is cold and under 200 degrees it sounds like shit, but once warmed up it sounds awesome (:
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      07-10-2012, 11:05 AM   #10
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Take the engine compartment silencer off. You'll hear spool and blow off with no investment. Remove pollin filter & cover, then the silencer( 8 bolts total). Can flap open will add some growl for free as well. Try these things before you go cutting stuff off the bimmer.
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      07-10-2012, 11:13 AM   #11
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Removing the mufflers will drone a lot in the cabin. The inline 6 is a raspy motor, it is hard to get rid of that noise when you are freeing up the exhaust.

In my opinion the only tolerable options are downpipes.

Do you know which magnaflow mufflers are on the car now? Perhaps you may want to change those to something else.
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      07-10-2012, 01:47 PM   #12
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My buddy has cut outs on his CTS-V. He also has headers on top of that. But it's a night a day difference in sound. Open, it sounds like a drag car...closed just another quiet caddy.

I'm not sure how our cars would sound though with cut outs...
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      07-10-2012, 01:52 PM   #13
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Quote:
Originally Posted by venom3469 View Post
My buddy has cut outs on his CTS-V. He also has headers on top of that. But it's a night a day difference in sound. Open, it sounds like a drag car...closed just another quiet caddy.

I'm not sure how our cars would sound though with cut outs...


This is with stock downpipes and straight pipes. Won't sound nearly as good as an LS motor, ask me how I know
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      07-10-2012, 01:52 PM   #14
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Quote:
Originally Posted by venom3469 View Post
My buddy has cut outs on his CTS-V. He also has headers on top of that. But it's a night a day difference in sound. Open, it sounds like a drag car...closed just another quiet caddy.

I'm not sure how our cars would sound though with cut outs...
Enough people removed everything...

Its loud... and just loud...

DP or other mufflers! BMW PE is nice
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      07-10-2012, 08:46 PM   #15
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Quote:
Originally Posted by Jeff@topgearsolutions View Post


This is with stock downpipes and straight pipes. Won't sound nearly as good as an LS motor, ask me how I know
I like the sound but that is sooo loud haha

Would taking off the mufflers on a stock system make a gurgle like that?
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      07-17-2012, 08:40 AM   #16
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I see alot of people keeping their stock exhaust do aftermarket x-pipes. Where do they find those, magnaflow?

I'm having trouble deciding if I want to do muffler delete or keep the mufflers and do an X-pipe
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      07-17-2012, 09:40 AM   #17
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Just go full catless with straight pipes. If the rasp is too much just have some resonators welded in.

Chances are you'll be deaf in a week though
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      07-17-2012, 09:58 AM   #18
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Just go full catless with straight pipes. If the rasp is too much just have some resonators welded in.

Chances are you'll be deaf in a week though
uh no lol as previously stated, I don't want ricer loud lol
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      07-17-2012, 10:02 AM   #19
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Quote:
Originally Posted by LBCC562 View Post
I had just the muffler delete before and when the car is cold and under 200 degrees it sounds like shit, but once warmed up it sounds awesome (:
Im in the same boat, its loud, and not a good loud, but once its warm
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      07-17-2012, 10:33 AM   #20
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uh no lol as previously stated, I don't want ricer loud lol
Lmao GOOD!! Fucking mosquito fart can exhaust -- Go with the HPF single-pipe exhaust. IIRC it merges into a single midpipe (post DPs) w/ a resonator & then splits again the back. Should give you the louder but bass filled sound you're looking for


IMHO -- Exhaust are a waste of money. They offer no performance gains & just make a lot more noise (and more than likely a lot of drone )
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      11-24-2012, 05:30 PM   #21
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ok are these the little bastards that everyone cuts out of their stock exhaust systems?
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      11-24-2012, 06:02 PM   #22
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Here's what mine sounds like:


I currently have VRSF catless downpipes, stock secondary cats, swapped the stock resonator with a custom made X pipe, and stock mufflers... I like the sound of it from the outside, but inside it is practically stock, about 10% higher than stock, maybe because of the sound insulation these cars have.

I definately want something a bit deeper and throatier, but not obnoxiously loud... Am currently debating wether to remove secondary cats, but don't know if that will point in the direction I want (maybe it will bring out raspyness wich I detest) or to just remove both secondary cats and mufflers and swap with vibrant resonators.
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