E12 based performance muffler

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G03rt2
Posts: 62
Joined: Sun Nov 05, 2017 11:48 am
Location: Wisconsin

E12 based performance muffler

Post by G03rt2 »

I'm probably going to do a project thread at some point, but I figured I would post this first.
I needed a 3" inlet muffler for a turbo build I'm doing on my e24, but wanted a "stock" look.
The muffler is a Gibson 758219. The offsets on the tail pipes are too sharp to bend. So I bought 2.25" mandrel u-bent pipes, cut them down the middle, flipped them and had someone who actually knows how to weld put them back together. 2.25" was selected because it ends up being the perfect offset for the bumper cutout. I'll update this thread when it's fitted to the car and a sound clip as well.
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BUELLRIDER
Posts: 2072
Joined: Wed May 23, 2007 11:31 pm
Location: Baltimore .Md HON

Re: E12 based performance muffler

Post by BUELLRIDER »

How did it Work Out?????
1981 635 German FRANKEN6ER gray market RIG, 1988 635,91 Nissan 240SX , 1993 Harley 1340ccFXR Super Glide, 2000 M2 Buell 1200cc.
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zinnocoupe
Posts: 506
Joined: Fri Sep 19, 2014 12:57 am
Location: Vancouver BC

Re: E12 based performance muffler

Post by zinnocoupe »

Interesting, Any other details on the cutting down the middle and flipping? Or more pics of the process? I'm looking at doing something similar to a euro e24 BMW muffler so the exit pipes will line up properly with the e12 rear valence cutout. Its either that or make a new cut out in the valence.
Also where did you get your mandrel bent pipe?
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1979 Euro 635ci no longer a basketcase, just a running rust bucket!
1977 530i Partially restored and running now!
1987 635csi 60K KM Garage Queen
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