Conclusion: Nice product fit perfectly on the product they are meant for. Scratch very easily so they won't be lookin new for very long after you purchase them if you load things in your trunk however they do protect the speakers ok for the most part, but not from pole like objects.
Conclusion: The grille looks very cool especially on the woofer itself. The only problem with it is that it scratches easily, so be careful. The grille also adds a little to the diameter, ~14 inches, a note for people making baffles.
Carlos Campo from Cali - Valle, Colombia, Sonic Electronix
5 May 2011
Conclusion: It is good to give some protection to your sub, so I recommend the grill offered by the same brand. In this case Pioneer. It looks more aggressive and attractive. Also gives protection. Your choice.... but do not forget protect your investment.