I've heard the chips do not work - I've removed the air box on my intake and put a K & N filter on it - removed the muffler - added straight pipe - still sounds good - just less restrictive and a little throaty - also have a catch can - just put that on - waiting to see the results of that - also run nitrogen on the tires and run about 4 lbs's over the manufacture recommended - I'm getting 38 mpg consistantly on the highway - planning on putting on the upper grill guard next
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