BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

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      03-06-2015, 05:43 PM   #1
klick
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My 128i Custom Muffler Delete

Alright, ever since I bought this car, I have been looking seriously at the BMW Performance Exhaust. I just could not ever get myself to justify spending 600-800 dollars on something that will only change the exhaust note of the car when it meant that I could easily buy a set of shocks with that money.

Searching through the threads I came to realize that there really were not many tangible performance gains when it came to the BMW PE. All I was looking for when it came to the exhaust was the deeper and more raw note that came with it to replace the vacuum cleaner sound that the stock 128i muffler makes.

Long story short, I decided to simply go to a nearby exhaust shop and get a custom muffler delete. Took 30 minutes and $160 to get the job done. I can honestly say that I am completely satisfied with the result. Honestly the exhaust tips could be better, but considering the deal the guy was offering at the time, I had to jump on it. He offered to do the job including a resonator delete for 200, but I declined since I don't want the car to be too loud.

Anyways, check it out guys, let me know what you think.

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      03-06-2015, 07:04 PM   #2
neverdone
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So what do you mean by a custom muffler delete? you simply got him to take the muffler out?
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      03-06-2015, 09:43 PM   #3
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vacuum cleaner sound is spot on lmao. sounds similar to my res delete.
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      03-06-2015, 11:34 PM   #4
klick
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Quote:
Originally Posted by neverdone View Post
So what do you mean by a custom muffler delete? you simply got him to take the muffler out?
Yea, basically went to a exhaust shop and told them I want to remove the muffler and run a straight pipe from the resonator. The guy measured everything out, cut the piping the went to the muffler, removed it, and welded new pipes in its place with an exhaust tip. 30 minute job after I explained what I wanted to do. Very cost effective as well.
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      03-07-2015, 12:54 AM   #5
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Is the only muffler before the tips?
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      03-07-2015, 01:24 AM   #6
klick
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Quote:
Originally Posted by neverdone View Post
Is the only muffler before the tips?
No, everything after the resonator was removed, the piping, muffler and exhaust tips. I replaced them with a straight pipe and new exhaust tips.
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      03-07-2015, 09:46 AM   #7
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did you go with a bigger size pipe?
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      03-07-2015, 11:20 AM   #8
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Wow, I like those tips!
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      03-07-2015, 07:57 PM   #9
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right there with you bro. i just want better sound and thankfully to you, ive been debating doing this not knowing how it would sound.

do you or anyone else on here know if there is any LOSS in power or any negative effects of doing this straight pipe from the resonator on down?

also, im in los angeles area also, what shop did you take it to?
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      03-07-2015, 10:04 PM   #10
klick
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Quote:
Originally Posted by mmmusty View Post
right there with you bro. i just want better sound and thankfully to you, ive been debating doing this not knowing how it would sound.

do you or anyone else on here know if there is any LOSS in power or any negative effects of doing this straight pipe from the resonator on down?

also, im in los angeles area also, what shop did you take it to?
I honestly did not feel any loss of power. In fact I feel that car responds a bit better now to the throttle, but that might be because I can actually hear the exhaust now.

The shop I took it to was called Speedway Muffler in Rowland Heights. Super professional and easy to work with. VERY fast too.
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      03-07-2015, 10:05 PM   #11
klick
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Quote:
Originally Posted by neverdone View Post
did you go with a bigger size pipe?
This one is a 2.5 inch pipe from the resonator.
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      03-07-2015, 11:36 PM   #12
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not bad not bad at all LOL I shouldv'e thought of this before I sleeved the 135i exhaust to my car LOL
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      03-08-2015, 10:32 AM   #13
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2008 BMW 128i  [10.00]
Sounds good
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"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is
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      03-08-2015, 11:08 AM   #14
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thanks bro
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      03-08-2015, 12:11 PM   #15
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Sounds really good!

I also did a custom exhaust on my car. Started from the catback with a 3" piping custom exhaust from magna flow. Sounds similar to yours.

I did lose power in the beginning since my engine wasn't use to the larger piping but it came back to normal after a couple miles of driving it.
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      03-08-2015, 06:45 PM   #16
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I have a 2008 BMW 128 convertible and I have a Berk Muffler delete from a 2008 BMW 135i Coupe are these interchangeable?
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      03-08-2015, 09:05 PM   #17
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Thanks guys, i think im set on doing the delete now. one final question, how loud is it just with the muffler delete.... i dont like to attract too much attention to be frank, kills speed
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      03-09-2015, 01:31 AM   #18
klick
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Quote:
Originally Posted by mmmusty View Post
Thanks guys, i think im set on doing the delete now. one final question, how loud is it just with the muffler delete.... i dont like to attract too much attention to be frank, kills speed
It is honestly not that loud. It a slightly larger, but the major change of doing this is the exhaust note, which becomes much more deep and raw. I don't think there should be anything to worry about.

It definitely will be loud if you delete the secondary cats or resonator.
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      03-09-2015, 01:33 AM   #19
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Quote:
Originally Posted by Guam135i View Post
I have a 2008 BMW 128 convertible and I have a Berk Muffler delete from a 2008 BMW 135i Coupe are these interchangeable?
It should be interchangeable. If anything, since the muffler will require you to saw off the pipe, you should just go to a reputable exhaust shop and they should have all the piping to weld it all together.
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      03-09-2015, 08:01 AM   #20
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Quote:
Originally Posted by Guam135i View Post
I have a 2008 BMW 128 convertible and I have a Berk Muffler delete from a 2008 BMW 135i Coupe are these interchangeable?
If you want to put the berk on without modifying it youll have to cut off the muffler and resonator and it will fit. The shop will either have to weld on the axleback or weld on a matching clamp to the berk axleback.
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      03-10-2015, 08:53 AM   #21
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Nice. I like my 128i but it is way to quiet. I have thought of buying some twin exhaust tips and have a muffler delete or the Berk race pipe for a 135i. I might do your route and save some money. OK, I won't save my money but I will buy something else for the car!
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      03-10-2015, 01:10 PM   #22
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Is there any drone?
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