All i can say is this , ive got a brand new D/V no reason whatsoever to take it off , but tried it anyway , and it DOES feel alot smoother to drive , not that it was a bad driver with it on , its just feels better without to be honest no one can really comment until theve tried both ways, that coming from a guy who would actually prefer it to be the opposite as the noise was okk vrooom tssshhhhh , u miss it when its not there and then wonder what all the fuss is about when it on leave it out is my opinion