Installed in the floor kick panels of a 2002 Jeep Wrangler (manual). Together with the Focal RSE 165 component speakers the Q-Forms added tremendous imaging improvement over the crap factory front speakers. Reasonably easy to install in the floor kick panel with the only real difficulty being cutting out the hole in the Q-Forms for the woofer driver. Difficult to clamp the unit to hold it to perform the cut out with an adjustable hole saw bought at hardware store that could be adjusted to the 5" diameter.
Pros: Dramatic Imaging Improvement, easy install.
Cons: Driver cut out a bit difficult and requires purchase of adjustable hole saw to make 5" diameter hole.
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