Yes, this is not about "chips" but programmers. With the programmer you cannot have your warranty voided because their is no trace of the programming left behind once disconnected and reset to factory.
super chargers and computers should be put on strong engines. the old buick 322 v8 would go 6,000 rpm from the factory. the chev small block can be made to turn high r.p.m.'s. there is nothing from the factory jeep that will do that. i think you are stuck with an engine swap. vinn