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      09-05-2016, 02:43 PM   #18
chadillac2000
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Drives: 2015 BMW M3
Join Date: Nov 2008
Location: Asheville, North Carolina

iTrader: (7)

After driving around the car for a few weeks with all the new power modifications and a healthy ignition/fuel system, it didn't take long before I started yearning for a subtle increase in exhaust volume; at least enough to match the sensational symphony of sounds coming from the intake side of things. At that point I began doing research for what I considered ideal for my daily driver. The fact that I was running catless downpipes meant that it would be very easy for me to overdo things and wind up with a droning setup that would drive me crazy on my morning and afternoon commutes. While a small increase in overall volume, crackles and pops was the ultimate goal, looks and being drone-free also played an important factor. Soon after starting my investigation I placed my order for the best option for me, the Maddad Whisper axleback with optional black ceramic coated 304SS tips. Unfortunately it took over a month for the new piece to arrive despite no backorder, but Rich compensated me for the delays and I can understand having something custom built to order can take time. Once the exhaust arrived and I was able to see the build quality; it was water under the bridge. Some shots of the brand new exhaust unboxed:









The install went fairly smoothly. I hate dealing with spring bolts, but still had the OEM piece removed and the MadDad Whisper fitted up in a little over an hour.

My initial thoughts are:
  • The ceramic black tips are exactly what I was looking for
  • The weight is significantly lighter than the OEM piece
  • Fit and finish was spot on
  • Cold starts are noticeably louder
  • Quietens down quickly and sounds almost stock at idle
  • On an average drive, volume has probably increased 15-20% over stock
  • More pops and burbles on deceleration, as well as when the engine is free revved
  • NO DRONE at any RPM in any situation











Once the exhaust breaks in a bit, I'll update everyone with how I feel after a few months of daily driving with the new setup.
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2008 BMW 135i Single Turbo Build Thread HERE
2016 BMW M5 Competition Build Thread HERE
2015 BMW M3 Build Thread HERE

Last edited by chadillac2000; 09-06-2016 at 01:00 PM..
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