How Left Rear shocks have changed in the last couple of years.

Left rear shocks have made a move to stiffer and it maybe helping. I always say "In racing if we all do the wrong thing it becomes right". Someone is going to win on it. Lets look at the different left rear shocks we build.
LR1-40-350 (starting point)
LR1-75-550 (ending point)
We can add low speed from 40 to 75 and high speed from 350 to 650 in all kinds of combos and it makes different left rear shocks for the customers needs. This shock has a standard bleed total of .09 and gets harder to push in as the high speed goes up. Also as you increase the high speed we increase the gas pressure in the shock to make it work.
The 2nd shock or the new one we are doing is a
LR2-400@300 psi
This is a real stiff shock that will hold the car up on entry and help carry it into the corner. The low speed callout on this is not important to the out come of the shock so we don't call it out. The bleed is decrease to .030 total so this increases the stiff performance of the shock.
See Left Rear Bypass shock video to understand more about how it works.
https://www.bsbgofast.com/shock-finder (link to help you find the shock you need.