REM ISF processing for gears, ring & pinion sets, CV joints, engine parts, and many other components. Developed by REM Surface Engineering, ISF, or “Isotropic Superfinish”, is a finishing treatment for machined metal components that eliminates the imperfections left over by the machining process. In very simplified terms, the “peaks” left on metal parts by various manufacturing processes are removed using vibratory equipment in conjunction with patented solutions to speed up the process. The result is a much more uniform surface that provides many impressive benefits for motorsports, including:Reduced Friction 
Lower Operating Temperatures

Extended Component Life

Increased Efficiency

Reduced Lubrication Requirements

Reduced Metal Debris

No Break-in Required
The bottom line is that the REM process will decrease power loss by making your driveline
more efficient. 
Price is for a typical NSX complete gearbox internal components. Please email us first if interested.

From Quaife Website - REM Superfinishing  (For Reference Only)
https://shop.quaife.co.uk/rem-superfinishing
REM Superfinishing
Gear Kits
REM Superfinishing
In stock
£315.00= ($450 USD as of Sept. 2016) + shipping2x/GST/custom etc.
BUY NOW
-OR-
Upgrade your gearkit, gearbox or CWP with REM superfinishing to give a much smoother surface finish to the gears.
This high polish surface finish produces a smooth surface that not only allows for more even lubrication of the entire gear, but also reduces friction between meshing parts, thereby reducing heat and wear on the part, and increasing the longevity of your gearkit or gearbox.
This is an essential upgrade for anyone looking to improve the performance of their gearbox or differential and get the most from the transmission.