I have been installing braid on my chassis for a long time now when allowed to by class rules in different classes.
There is almost always some improvement sometimes slight but other times pretty good.
Today I had one of the biggest improvements I have ever seen. This 57 Corvette was running OK hitting a .7951 @ 16.88 mph. After installing some braid the improvement was amazing, 8 mph and .2 better in ET, .5965 @ 24.98 best I have ever seen. Anyone else ever had such a boost. Must have been a couple of Turbos in that braid.