Good point you make Fox. I'll add that a shifter base gasket will help with isolating the noise that travels into the cabin. Like you said, the amount of noise that travels into the cabin varies from car to car. A base gasket does a better job with noise isolation that even the build in grommet on the GMM. Pretty much all billet shifters unfortunately by their construction allow more noise into the cabin than non-billet shifters. But fortunately there are ways to reduce the noise, and in many cases all but eliminate it.If noise is a primary concern, the GMM street version is probably your best choice. This option retains the factory lever which incorporates a rubber center section for noise/NVH isolation and damping. All of the other shifter options do away with this damper thus allowing more NVH into the cabin. In some cases the noise can be quite loud, it varies between shifters and also depends on your particular transmission as some are inherently more noisy than others. There have been people who installed the GMM race version, which is basically a metal rod right into the transmission, and reported minimal noise. Others with the same shifter stated the noise was unbearable and some even swapped the lever for the street option.
There have been some noise issues reported with the Billet as well, mostly rattle.
I just installed this package (Harrop + LSS) with Cobra Bob gaskets, and I am very pleased. Short throws, smooth action, positive engagement. I did get a little rattle at WOT in 3rd gear, but I suspect that I just need to redo the silicone adhesive in the knob, as I didn't use any during reassembly.Harrop (I believe) has changed few things. We've recently installed one of these and I fell in love! No rattles, positive engagement, and shorter than stock! The only thing I do not like about this unit is that it actually raises the overall height of the shifter handle by .250".
We will be installing one of these with a Lou's Short Stick, I think with these two you can't go wrong and we'll be selling them as a package very soon!
I've had my Billet Pro installed for almost 2 weeks now. It's loosening up very nicely, and getting it into reverse is no harder than the stock shifter. (I think the new shifters have been moded to make this easier)How does the GMM with the LSS throw compare to the billet pro?
I want some thing I can power shift from 2 - 3 and feel confident every time.