Reviewed By Chris F (LITTLE HOCKING, OH) Reviewed for a 2012 Nissan Titan —6/21/2015 7:35 AM
So far, so good! I was initially concerned about the db level that I would hear in the truck. The rpm range is limited for optimal rumble range for my Titan to be around 1500-2500. That is just what I was hoping for from my research. I really have not noticed any fuel rating increase as of yet. However, that is hard to judge due to the fact that I tend to stay in the rumble range when applicable.