130i custom exhaust with bmp muffler

[Sarma]

Was browsing FB marketplace and the bmp muffler popped up for sale, which was quickly secured. The initial idea was to just have a shop weld it on and be done with it. However things have a tendency to snowball, so decision was made to go for a full custom system with the bmp at the end of it.
So a full catback system, with Laptorr style equal length midpipe going in to a y pipe that then terminates in to the bmp muffler.

The results, I’m very pleased. The sound is unique for a n52 but no drone that I can notice. It’s just loud enough without being obnoxious and doesn’t have that messy straight pipe sound.
https://youtube.com/shorts/ogTKKcTzr...tAVZ-7kvBOVDrO

[spidertri]

Sounds great! I'm very jealous of your E81, wish we got those here.

[moebiuz]

Originally Posted by Sarma

Was browsing FB marketplace and the bmp muffler popped up for sale, which was quickly secured. The initial idea was to just have a shop weld it on and be done with it. However things have a tendency to snowball, so decision was made to go for a full custom system with the bmp at the end of it.
So a full catback system, with Laptorr style equal length midpipe going in to a y pipe that then terminates in to the bmp muffler.

The results, I’m very pleased. The sound is unique for a n52 but no drone that I can notice. It’s just loud enough without being obnoxious and doesn’t have that messy straight pipe sound.
https://youtube.com/shorts/ogTKKcTzr...tAVZ-7kvBOVDrO

Holy crap that sounds amazing! Im not a fan of the oem sound of our cars, but yours sounds really good (kind of an n55). The key thing to me is the custom system you made. Would you share what did you do exactly so I may can replicate? I have a 130i as well, it is even the same color!

Cheers!

[Sarma]

Thanks, I'm really content with the sound the car makes.
The equal length midsection is modelled after Laptorr system which is quite good just has to be shipped from Japan and as I already had the bmp muffler I decided to make it custom.
Not the best images but they should do.

View post on imgur.com

View post on imgur.com

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View post on imgur.com

[Enos]

Originally Posted by Sarma

Thanks, I'm really content with the sound the car makes.
The equal length midsection is modelled after Laptorr system which is quite good just has to be shipped from Japan and as I already had the bmp muffler I decided to make it custom.
Not the best images but they should do.
https://imgur.com/BMM1CAn
https://imgur.com/nfi4YjB

https://imgur.com/JTywz2u
https://imgur.com/sP56qY2

Pics not available in my region, can you please upload others sorry? Very interested in how these look under the car

[malage]

Hi do you have any diagrams or something? To give to my welder great job man sounds mad