Quote:
Originally Posted by bigsix
other factors may be:
- getting better at driving the car: i.e. faster shifting= better speed
- high fuel quality vs. lesser quality
? : Does this VQ37 engine get louder once it has been broken in ?
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
and as far as getting louder, on my 2011 at first it was, but once i passed 20k on my mileage things seem to be smoothing out now especially at the higher RPM's....oh and just so everyone knows i took my throttle bodies off this last weekend and discovered that they had a nice ring of dried up oil that was making the butterfly valves stick in place so in case anyone gets up to around 20k or so it would probably be a good idea to get some throttle body cleaner in there and clean the throttle bodies out.