I have the chance to buy either a DiabloSport Predator Tuner or some used Mach 1 tokico spec shocks/struts so I can finally put on my lowering spring w/o worrying about my stock ones busting. I honestly would of waited for the tuner if it weren't for hearing that LTs cause your car to run lean. Which would you do first?

 

Get SCT, diablo is ok but most of the tuners in my area use SCT