TheTopher on YouTube has been working with MRT to develop a system for the FL5.
Showcased here is their 'muffler delete' system. I think it sounds pretty good!
Credit: TheTopher
Saw this video on Youtube on how to do the 'Pedal Dance' to completely disable Traction/Stability control.
Thought I would share it here
Credit: Mitch MC
I have H&R Sport springs for sale (FK8 fitment, according to a few posts here could fit FL5 with no modification)
These have never been used/installed I decided against lowering my fk8.
Located in Los Angeles area, $200 takes it.