2007 Infiniti G35 Sport: Reducing dangerous horsepower
February 22, 2008
Walking around our G35 Sport after Wednesday's antics in the wet I noticed something strange through the wheelwell opening.
Closer inspection proved this something was visible from both sides (first image is the right side, this is the left side). In this detail shot you can see exactly what I'm talking about: dead weight -- about 1.4 pounds (22.16 ounces) of it per side. Bolted to both of the G35's mufflers is the below weight:
This weight is a physical manifestation of the efforts manufacturers go to to make modern cars smooth and quiet. Look under almost any modern car and you'll find similar weights hanging there on the differential, the transmission or, in this case, the exhaust. They exist to damp rogue resonances and vibrations produced by the powertrain.
I know why they're there, but as an enthusiast I can't help but hate the idea that most cars are packing around this extra ground-hugging mass for the sake of civility. And here it's painfully visible from above. But hey, I guess there's an additional benefit: Reducing dangerous horsepower.
Josh Jacquot, Senior road test editor @ 18,479 miles