M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => Engine + Driveline => Topic started by: colin86325 on August 08, 2012, 07:16:26 PM

Title: Custom exhaust installed
Post by: colin86325 on August 08, 2012, 07:16:26 PM

I was looking for a performance upgrade over the stock muffler so I recently had a custom exhaust installed.  Sound quality and durability (I wanted stainless steel, not aluminized steel) were my top priorities.  I didn't want something too loud either as I am getting old and don't need the attention.  I really wanted a Remus but didn't feel like shelling out that much money.  I guess in the end I came close anyway.

After shopping around for a few weeks I decided on a QTM 10  (http://solo-performance.com/quantum-muffler-series) Quantum muffler from Solo Performance. Seems like not many E30 people have this.  It's well-constructed and has a unique dual-path design.

My cat was rattling, so I had the exhaust shop replace it with a high-flow aftermarket cat from Carsound.  They suggested cutting out the stock resonator and replacing it with a 12" louvered straight-through resonator. They ended up running new 2.25" 304ss tube from the cat to the muffler.
This combination shounded way too raspy.  The 12" straight-through resonator didn't do enough and my car sounded like a Civic when I was getting on the throttle.

I ordered a Hushpower resonator (part number 12412400) to replace the 12" resonator and it made a huuuge difference in the overall rasp.


 (http://static.speedwaymotors.com/images/charts/Hushpower.jpg)(http://www.rippmods.com/v/vspfiles/photos/jk-12518400-2T.jpg)


When the exhaust is cold it has a bit of a stacatto sound from 2k-3k rpms, almost like a deck of cards is being shuffled, but I'm pretty pleased with the exhaust overall.  I'll try to get around to posting some clips some day...

Title: Custom exhaust installed
Post by: jrobie79 on August 16, 2012, 10:02:38 AM

any soundclips?

Title: Custom exhaust installed
Post by: d.hitchcock on August 17, 2012, 08:49:49 AM

I know the folks at Solo Performance. Good outfit.

Thanks for the info as I hope to put together something for my 318is that sounds better than what it's got ... without being as loud as my autoX e30.

I'm old too. :-)

Title: Custom exhaust installed
Post by: colin86325 on August 28, 2012, 02:28:33 PM

I uploaded some videos:

 https://skydrive.live.com/?cid=de7fc439a129009d#cid=DE7FC439A129009D&id=DE7FC439A129009D%21117 (https://skydrive.live.com/?cid=de7fc439a129009d#cid=DE7FC439A129009D&id=DE7FC439A129009D%21117)