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      09-12-2017, 12:06 PM   #9
SaltyNC
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Drives: 2006 BMW Z4M Roadster
Join Date: Oct 2015
Location: NC

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86Zed,

The mufflers are similar in sound. You're right on the weight. The Stomung are light, and the Powerloops are much heavier. The Powerloops look like jewelry compared to the Stromung. Fit and finish much nicer. At least the Stromung on my car droned a little more, but they also popped and gurgled more. I miss the pops and gurgles of the Stromung. Some people say they have no drone with the Powerloops, but I still have a little, but it is definitely less than the Stromung. This could be related to something touching. When I get the car back on a lift, I'm going to check to make sure nothing is rubbing/touching. I know the mufflers are isolated, but maybe something else along the exhaust piping is touching when it gets hot and expands. Until my engine gets warm, I have zero drone, but after everything heats up, I get a little drone under load in certain RPMs, but again, very minor. With the top down, I don't notice it all.

Salty
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2006 BMW Z4M Interlagos Blue/Black
Aux Port|LED Interior|LED Strip Trunk|Underseat First Aid Box|Stubby Antenna|Intravee II|BMW Oil Change Kit|Top Down Side Panels|Vibra Technics Engine Mounts|Rogue Trans Mounts|Engine Mount Bolts Upgrade|RS Windblocker|Euro Front Plate|M5 Illum Shift Knob|Supersprint Powerloop Exhaust|Gruppe-M Intake|RPI Scoop|Black Grills|19x8.5 ET35 F 19x9.5 ET22 R Sportline 8s PSS| Besian Vanos|CDV Delete
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