Built a custom one of a kind muffler, works great!

[ziconceo]

Let me start this out with "I'm a cheap a**" haha I've wanted a good flowing muffler for awhile now since I have a high flow air intake. My conundrum was that I didn't want it to be loud or drone but still have good airlflow. Enter the bmw pre-muffler!

I found this sitting around my dad's shop and noticed that it has a semi straight pipe and sound damping.

http://s1089.photobucket.com/user/ziconceo/media/Mobile Uploads/IMAG0933_zpsicyccasf.jpg.html]

So I took out the stock exhaust and cut the flange side off because It made everything fit so well. I then looked around the shop and found a weird shaped pipe, turns out this pipe lines up perfectly with the 45degree angle of the bmw dampener and the outlet area of the bumper.




The sound is perfect to me. No droning and not too loud. Sounds nothing like a ricer but still has more umph to it.

The stock muffler section weighed 15 lbs, the new one I put together weighs 8.5. Lbs so I'll get like .05 more mpg from the weight reduction alone lol.

The power band changed dramatically after doing this. Normally my power band would kick in at 4000rpm. Now I pretty much have a 45degree power band where the car just pulls all the way through. It's a very smooth acceleration.[/IMG]

Sound clip:

https://soundcloud.com/jeff-pickle/1999-honda-civic-with-bmw-pre-muffler

 

[XpL0d3r]

Interesting, lol. In for sound clip!

 

[Mr.Baker]

Interesting find, would like to hear how it sounds.

 

[bairdandrew77]

Would you happen to know which BMWs had that thing? I'd like to hear it on your car as well

Sent from my SGH-T399 using Tapatalk

 

[Joe Mason]

A sound clip and some pics of the finished product would be nice.

 

[ziconceo]

Would you happen to know which BMWs had that thing? I'd like to hear it on your car as well

Sent from my SGH-T399 using Tapatalk

No idea... I'd guess a 90's 3 series or 5 series. A 328i or 528i. Something with the 2.8L I6 from the 90's or early 2000's because the tailpipe always came out the side of the car.

As for a sound clip, sure! I'll make one if a few hours and upload it

 

[ziconceo]

Here is a sound clip, hope it works. This is from inside the car.

https://soundcloud.com/jeff-pickle/1999-honda-civic-with-bmw-pre-muffler

 

[ziconceo]

Some more pics....

Looks stock


But its not!



For those curious, here is what the inside of it looks like (different model but same idea)

 

[XpL0d3r]

That doesn't sound bad at all.

 

[ziconceo]

That doesn't sound bad at all.

Thanks! I'll try to record one while I'm driving as well

 

[HeX]

It sounds pretty good. Yet another successful hybrid muffler swap. I have an '02 RSX Type-S muffler on mine. I definitely look forward to a sound clip from the rear. Did you record it from the drivers seat with the door open?

 

[ziconceo]

It sounds pretty good. Yet another successful hybrid muffler swap. I have an '02 RSX Type-S muffler on mine. I definitely look forward to a sound clip from the rear. Did you record it from the drivers seat with the door open?

I'll right I'll do one from the rear too, I recorded it from the drivers seat and the window open.