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      09-23-2012, 01:29 AM   #1
PureE92
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Worth making my car louder?

Hi, guys first off im new to the board and would like to introduce myself. Name is Shawn, just got my first ever alpine white e92 328i. 6mt ofcourse. So I have been lurking on these boards for a while now because I wanted to make my car louder also. But Ive been hearing all about this muffler delete, res delete, cat delete but my friend who is mechanic advises me not to do so.

Muffler delete- can cause issues with backpressure and the car is NA.

Cat delete- can cause issues when the car starts heating up.

Res Delete-code issues?!

Would like to hear your guys inputs if this is true or not.Thanks!
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      09-23-2012, 02:47 AM   #2
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dont mean to be douch but i was once a noob and still am some what but do a search and u will find a billion threads about this topic
were in tx u stay btw?
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      09-23-2012, 03:16 AM   #3
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I have been through several posts pertaining this topic but keep getting cofusing answers. Im in Houston, Sugarland/Bellaire area.
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      09-23-2012, 03:37 AM   #4
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Muffler delete- can cause issues with backpressure and the car is NA.

Yes muffler deletes have been proven to lose power in our cars. so i wouldnt do it.

Cat delete- can cause issues when the car starts heating up.

2nd cats can be deleted with out any issues.

Res Delete-code issues?!

Res delete will not cause any code issues.


If you wanted more sound ide delete the 2ndary cats and see how u like it.
cause in my option when i deleted the RES i noticed jack poo in sound.

I got a amazing exhaust guy who dose all my work for cheap.
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      09-23-2012, 03:39 AM   #5
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I see, so if i Delete my Secondary Cats it will increase the noise, but no issues will happen? Do you mind telling me how much you think it would cost to get it done?
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      09-23-2012, 03:43 AM   #6
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Quote:
Originally Posted by PureE92 View Post
I see, so if i Delete my Secondary Cats it will increase the noise, but no issues will happen? Do you mind telling me how much you think it would cost to get it done?
ya it will be louder and u wont have any issues u wont throw any codes or nothing. your 100% safe.

ide say $80 and im shooting high on price. so i know it will be cheaper im just ballparking it to be safe

This is my 330i with muffler delete and 2ndary cat delete



Heres a bad ass exhaust vid to compare to thanks to HOOY
http://www.youtube.com/watch?v=0ZZQyPcV_UA
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      09-23-2012, 03:46 AM   #7
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Heh, thats not bad. Sorry if i ask alot of questions. Im still new with bmws. Any exhaust tips you would also recommend? And where is the shop located? Thanks!

Nice 330i! That was my first choice couldnt get none with low miles sadly. And i like the grunt it has, my 328i is super quiet. Ive looked at prices for the PE its pretty hefty.
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      09-23-2012, 03:51 AM   #8
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Quote:
Originally Posted by PureE92 View Post
Heh, thats not bad. Sorry if i ask alot of questions. Im still new with bmws. Any exhaust tips you would also recommend? And where is the shop located? Thanks!
Its cool we are all new at one point it just takes time.
as for tips it all depends on your prefence DiMisa has some killer tips u can pick up a set for cheap on here.

If u want a nice sounding set up ide run a Dynomax Super Turbo Muffler in place for the RES, delete the 2ndary cats and run a flowmaster vt muffler so u wouldnt have any drone issues my buddy had that set up on his 325i and it sounded amazing.

Last edited by DJ Apex; 09-23-2012 at 03:58 AM.
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      09-23-2012, 03:53 AM   #9
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Quote:
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Its cool we are all new at one point it just takes time.
as for tips it all depends on your prefence DiMisa has some killer tips u can pick up a set for cheap on here.
Would i find them in the vendor section or the parts for sale?
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      09-23-2012, 03:58 AM   #10
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oh the exhaust shop is in passadena
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      09-23-2012, 04:00 AM   #11
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Do they have a website, if not could I get the number please?
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      09-23-2012, 04:02 AM   #12
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no website its a small shop and number lol the owner is always busy so your best way is to show up and let him give u a quote in person. i can get u a good deal on a
Magnaflow part #14803
In fact heres one of my set ups i made
http://www.e90post.com/forums/showthread.php?t=626393
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      09-23-2012, 04:03 AM   #13
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http://www.e90post.com/forums/showthread.php?t=694465
http://www.e90post.com/forums/showthread.php?t=661826
http://www.e90post.com/forums/showthread.php?t=608932
This oughta get you started, have fun with exhaust set ups, I have 3 at home. Dealers know about my car and they don't give me problems and the car still runs like a champ.
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      09-23-2012, 04:09 AM   #14
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Quote:
Originally Posted by Route 16 View Post
http://www.e90post.com/forums/showthread.php?t=694465
http://www.e90post.com/forums/showthread.php?t=661826
http://www.e90post.com/forums/showthread.php?t=608932
This oughta get you started, have fun with exhaust set ups, I have 3 at home. Dealers know about my car and they don't give me problems and the car still runs like a champ.
lol im right there with u lol i got 4 already lol im out of warrantie so boo lol
i like the set up your running i have something like that a dule to x pipe from header to 3inch dynomax super turbo muffler to flowmaster hushpower muffler to magnaflow tips and ive gotta say i have no drone at all. its quite with i want it and loud when i need it to be. And this is also running catless headers lol


Took a buttload of tinkering and $$$$$ but i got it to were it dont sound raspy its mellow and yummy lol
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      09-23-2012, 04:17 AM   #15
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Quote:
Originally Posted by Route 16 View Post
http://www.e90post.com/forums/showthread.php?t=694465
http://www.e90post.com/forums/showthread.php?t=661826
http://www.e90post.com/forums/showthread.php?t=608932
This oughta get you started, have fun with exhaust set ups, I have 3 at home. Dealers know about my car and they don't give me problems and the car still runs like a champ.
Wow, you really put time and money into it. I plan to do same, going to take a while a though considering im college student.
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      09-23-2012, 04:18 AM   #16
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Quote:
Originally Posted by PureE92 View Post
Wow, you really put time and money into it. I plan to do same, going to take a while a though considering im college student.
best bet is research research research learn from all out $$$$$ mistakes lol
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      09-23-2012, 04:18 AM   #17
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Quote:
Originally Posted by DJ Apex View Post
no website its a small shop and number lol the owner is always busy so your best way is to show up and let him give u a quote in person. i can get u a good deal on a
Magnaflow part #14803
In fact heres one of my set ups i made
http://www.e90post.com/forums/showthread.php?t=626393
Could I get the address please? And do they do a good job on making sure there are no issues with heating and leaking?
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      09-23-2012, 04:19 AM   #18
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Quote:
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best bet is research research research learn from all out $$$$$ mistakes lol
Heh, i know. Ive seen several nice systems but all for big price tags. And most shops in Houston that are reputable charge pretty big still.
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      09-23-2012, 04:20 AM   #19
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Quote:
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Could I get the address please? And do they do a good job on making sure there are no issues with heating and leaking?
ya the guys name is mike hes super cool and always dose great work. he's done all my work my vw buddys and many outher bmw homies.

best way if for me and u to set up a time and date and ill roll out with u since he knows me i can work out a good deal for ya
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      09-23-2012, 07:49 AM   #20
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Quote:
Originally Posted by DJ Apex
Muffler delete- can cause issues with backpressure and the car is NA.

Yes muffler deletes have been proven to lose power in our cars. so i wouldnt do it.

Cat delete- can cause issues when the car starts heating up.

2nd cats can be deleted with out any issues.

Res Delete-code issues?!

Res delete will not cause any code issues.


If you wanted more sound ide delete the 2ndary cats and see how u like it.
cause in my option when i deleted the RES i noticed jack poo in sound.

I got a amazing exhaust guy who dose all my work for cheap.
Where has it been proven a muffler delete loses power? Everything i've found says the opposite

Back pressure is ALWAYS BAD PEOPLE

i don't know where you all learn to think that it's ever good but it is NEVER. GOOD.

Doing an exhaust badly causes the gases to pulse incorrectly which harms scavenging and increases back pressure (with reflections etc)


The big issue with a muffler delete is it makes it TOO loud and raspy and sounds like shit

I'd love a set of cat delete headers (20-30hp too) but getting rid of the cel.. So much simpler with an n54 and jb4 >_< - header cats will make the most noise of all the 'deletes', could get your stock headers modified for a couple hundred$ i guess? Just have to deal with the CEL
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      09-27-2012, 05:48 PM   #21
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You want the BMW PE. No matter what cheap short cuts you take, the PE will still sound better.

Check my sig for the Houston E9X group and for an exhaust comparison video.
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      09-27-2012, 06:48 PM   #22
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You want the BMW PE. No matter what cheap short cuts you take, the PE will still sound better.

Check my sig for the Houston E9X group and for an exhaust comparison video.
+1 I have the PE and love it!! Performance exhaust+secondary cat delete if you want louder too. Still debating if I'm gonna go that route though. I'm happy with just the PE
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