Old Jul 12, 2013 | 02:24 PM
  #5 (permalink)  
boostmonkey's Avatar
boostmonkey
Forum Regular
Joined: Jan 2011
Posts: 528
Likes: 0
Default Re: Boostmonkey mods: SLK32 AMG custom exhaust, Flowmaster Super 40

Oh! I have a new exhaust! Again. This is version 4. I have not been keeping this thread updated well.

Version 2: I added a small bullet resonator to remove some of the harsh high frequency sounds. This helped a little.

Version 3: Then I removed that bullet resonator and installed a larger Magnaflow glasspack resonator. Much better. This version sounded AWESOME. I got compliments on it all the time, even from the domestic V8 guys.

Version 4: I replaced the Flowmaster Super 40 with a Magnaflow 14x9 to quiet it down - which worked. The Super 40 sounded amazing, but was super loud and had a horrid drone at 75 mph. A 1200 mile round trip to the beach nearly left me deaf. The Magnaflow is only 50% as loud, and actually quiets down around 75 mph.

I replaced the Magnaflow y-pipe with a Flowmaster Scavenger y-pipe. I had an odd sound coming from the y-pipe and I thought it was resonance from the stamped y-pipe walls. My thought was that the Flowmaster Scavenging y-pipe would eliminate this - which mostly worked. The sound is 90% gone.

I had to relocate the 3" ball joints for disassembly to new locations to make room for the longer Flowmaster Scavenger Y-pipe and Venturi 3.5" to 3" reducer.

New video coming... eventually.
 
Reply