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I don't have either shifter, but from researching/reading past discussions, here's what I know...I hope this is accurate.
the #45044 is the original version with a solid lever...some complained about vibrations/noise.
the #45057 is the latest version with a rubber insulated lever, much like oem, which apparently isolates much of the vibrations/noise coming into the interior.
Both would use the oem **** or any after market **** with 9/16-18" thread.
I do have the model versions reversed...go to their website, bmracing.com
I'm relatively certain that the main difference is in the insulated lever though.
#45057
#45044
Last edited by hotwheels57; Jan 17, 2007 at 01:13 PM.
#45044 is the newer version. I just got one for Christmas & installed it. The install is simple, shifts are a huge improvement, & I have had zero issues with noise/vibration/heat. I highly recommend the shifter, great upgrade.
Ive proububly had more shifters than most (I'm hard to please!) and If you can read directions and DO the adjustments then it gota be the "HURST" shifter, you can customise this down to the inth degree!