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      03-19-2018, 07:19 PM   #20
E90PAT
SOFLO CODING
Slovenia
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Drives: Z4M
Join Date: Apr 2009
Location: SoFla

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Quote:
Originally Posted by RossBMWZseries View Post
They increase about 7HP and also torque. They weigh less. It's pretty damn easy as long as you can lift the rear with ramps or a jack. And the sound, oh the SOUND!
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