Stock muffler mods

discussions specific to the 907IE
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dennist
Posts: 64
Joined: Sun Feb 22, 2009 4:55 am
model: 907 I.E.
year: 1992
Location: Oregon City, Oregon USA

Stock muffler mods

Post by dennist »

'92 907ie with stock Ducati mufflers. When I shine the flashlight inside the muffler I see some silver packing like aluminum wool or crumpled aluminum foil about 12-14" down the tube. Can this be removed to give better flow? Am installing Fast by Ferracci Stage 1 chip in ECU with KN air filter and would like to get better flow out the rear end of the muffler (exiting pipe is so small it almost looks like something off a 2 stroke!). Any ideas on removing this stuff or what can be done to stock muffle for improvement without major mods.
Thanks.
Tamburinifan
paso grand pooh-bah
Posts: 1527
Joined: Thu Jun 21, 2007 12:00 am
model: 907 I.E.
year: 1991
Location: Gothenburg, SWEDEN

Re: Stock muffler mods

Post by Tamburinifan »

Done that.
Removed the part in middle for straight through passage.
Didn't do much, for neither sound nor performance.
Not worth the trouble IMHO.
Gert

907 I.E. -91
M900 -97
MTS 1100s -07
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