I never ran the bulkhead x brace on my 15 front or rear. I am building my 2016 and it's noted to install both front and rear. I'm just running stock 17.5 on high bite carpet (the new stuff) and wondering if it's appropriate to use both x braces (is it necessary, what do they actually do, stiffen for less flex?)
I'll be experimenting at the track but looking for experienced thoughts.