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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Cosmetic and Lighting Modifications (exterior/interior) > 328i to 335i Rear conversion questions!



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      06-11-2013, 08:19 AM   #23
BoogeyMan'sBMW
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Quote:
Originally Posted by VTECaddict View Post
There is not much room to do with it with the stock muffler or PE because you would have to reroute BOTH exhaust outlets on the muffler. Not only will space be an issue but it will be super restrictive.

Just go with the Magnaflow muffler if you want a more subdued sound. If you want noise then just go without a muffler.
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Originally Posted by Blindside_137 View Post
The new diffuser is looking great!

I'd go with the 3.8 black tips, skip the CF on a 328. It may be too loud right now but I feel like even if you left the muffler delete and just added the piping + tips, that extra few feet of piping will bring down the volume a bit.

Keep us posted with what you do
NO! PLEASE KEEP THE MUFFLER ON. I just got my muffler chopped off with my dual set up and holy drone! The muffler will be going back on soon haha I'm thinking of doing the muffler where the res used to be and hoping that will give it a bit more umph due to the straight pipes from there on out but also take care of the drone.


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Originally Posted by JaysBlueE92 View Post
not really their is a bit more room on the sedan than the coupe near the storage compartment and vapor canister hoses is different on the coupe
There is actually more room on the sedan. Not only is it longer, but the storage compartment is smaller.

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Originally Posted by lemmegetatthat View Post
it can probably be done, they would just have to mount the PE further towards the front and cut the tips off to weld on the piping.
And yes, Michael is right it is possible and has been done as well. However, the extra piping and the 90 degree bend alters that signature PE note.
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      06-11-2013, 08:20 AM   #24
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And just for the record, you have a gorgeous car. The color is really nice and its so cleann, good luck OP!
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      06-11-2013, 09:40 AM   #25
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actually once you do the muffler delete and run a pipe to the right side of the car, this makes the sound of the car become quiet. I have muffler delete with 333 rear conversion and once i ran the extra pipe to the right of the car, i noticed that the sound became less aggressive but i like it.
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      06-11-2013, 03:59 PM   #26
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I recently did this exact conversion. I used a Magnaflow muffler, Dimisa 4" tips, and retained the stock resonator. I personally like the sound with this set up. The tone is deep and is a bit louder than stock at acceleration but does not drone. While I was relocating the evap canister, one side of the exhaust was ran first and the other was left as a down-turned pipe and the drown was ridiculous.

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      06-11-2013, 04:32 PM   #27
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Quote:
Originally Posted by BoogeyMan'sBMW View Post
NO! PLEASE KEEP THE MUFFLER ON. I just got my muffler chopped off with my dual set up and holy drone! The muffler will be going back on soon haha I'm thinking of doing the muffler where the res used to be and hoping that will give it a bit more umph due to the straight pipes from there on out but also take care of the drone.
I warned you dude !
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      06-11-2013, 08:43 PM   #28
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Quote:
Originally Posted by mr.e90
actually once you do the muffler delete and run a pipe to the right side of the car, this makes the sound of the car become quiet. I have muffler delete with 333 rear conversion and once i ran the extra pipe to the right of the car, i noticed that the sound became less aggressive but i like it.
I thought this would be the case. This is my plan. Worst case scenario I add a muffler later on. No big deal
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      06-11-2013, 11:15 PM   #29
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FWIW i used the magnaflow muffler and it sounded really good. Sound on start up was great, low rpm's even better and as the 6 rev'd up the sound of the motor took over. Overall very happy with a $140 muffler... Dimisa tips look clean, check out the dry carbon
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      06-12-2013, 08:23 AM   #30
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I warned you dude !
yes you were right, eat dix
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      06-12-2013, 01:12 PM   #31
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It can be done with the magnaflow muffler that's how I did mine. As far as the tips they will prob have to be cut in half unless you want them sticking out from the diffuser.t I have a sedan not sure if it matters
Not necessarily. Look on ebay for tip options. There are some nice double walled tips that are only 4 inches long. Thats what I used and they do not stick out too far at all.
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      06-12-2013, 01:14 PM   #32
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Quote:
Originally Posted by mr.e90 View Post
actually once you do the muffler delete and run a pipe to the right side of the car, this makes the sound of the car become quiet. I have muffler delete with 333 rear conversion and once i ran the extra pipe to the right of the car, i noticed that the sound became less aggressive but i like it.
I can conform this is true. I have the muffler delete as well, kept the resonator, and when the pipe were added, the sound was significantly quieter.
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      06-12-2013, 06:30 PM   #33
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Quote:
Originally Posted by BoogeyMan'sBMW View Post

There is actually more room on the sedan. Not only is it longer, but the storage compartment is smaller.
I know That's what i said
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      06-13-2013, 08:28 AM   #34
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Quote:
Originally Posted by JaysBlueE92 View Post
I know That's what i said
oops i meant coupe*

there is more room on the coupe because it is longer and the storage compartment is smaller

sorry about that
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      06-13-2013, 08:29 AM   #35
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Quote:
Originally Posted by dewey4262 View Post
I recently did this exact conversion. I used a Magnaflow muffler, Dimisa 4" tips, and retained the stock resonator. I personally like the sound with this set up. The tone is deep and is a bit louder than stock at acceleration but does not drone. While I was relocating the evap canister, one side of the exhaust was ran first and the other was left as a down-turned pipe and the drown was ridiculous.

pics of the undercarriage? how did you relocate the evap canister?
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      06-13-2013, 10:45 AM   #36
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Don't have any pics of the undercarriage currently. The evap canister was moved behind the center of the bumper. I then took the connection heads off the original tubing and attached them to sections of PEX pipe and spliced those into the original hoses. The wiring was just spliced into and extended, and the canister itself was bolted into the storage compartment.
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      06-17-2013, 04:50 PM   #37
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Pics please.
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      06-18-2013, 11:59 AM   #38
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Anything is possible..this is one of the cleanest conversions done on a 328

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      06-21-2013, 09:41 AM   #39
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Cars in the shop RIGHT NOW for the exhaust work !

will post pics when its all done
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      06-21-2013, 08:53 PM   #40
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Nice! What exhaust set up are you going with?
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      06-22-2013, 08:10 AM   #41
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Final product posted pics !!!

I decided to keep the OEM muffler because in the end I really dont like cabin noise and theres very very minimal performance gains from aftermarket options. Now I can still enjoy my logic 7

il shoot for performance on my 2018 M4 lmao
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      06-22-2013, 09:07 AM   #42
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Looks fantastic!
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      06-22-2013, 10:26 PM   #43
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Thanks a lot man ! I really love it, I really hate single side exhausts lol

how long till your conversion !
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      06-22-2013, 10:58 PM   #44
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Lol same!

Not sure, my diffuser is taking forever to ship so I have some lci tails coming in the mean time. As soon as the diffuser is here I'll get the bumper ordered. Hopefully done by August.
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