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01.24.2007, 10:28 PM
Well, aluminum will be heavier and will not flex, just bend. RPM arms will be very flexable and a lot lighter. I would go with RPM mainly because you have a lifetime warrenty, but thats just me. I am not too sure about GPM, however I would suggest Fast Lane Machine or Unlimited Engineering a-arms if you go with the alloy ones.
my .02
Last edited by jnev; 01.24.2007 at 10:29 PM.
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