You can delete it right at the block. But you will need a pipe stop to delete it by the header. Some people say the car runs bad at idle without a tune.
new engine,1.7 rocker arms,Pipes exhaust, shorty cats , shorty headers,under drive and overdrive pulleys,4.2 upper plenum, throttle body spacer, cold air intake, stage one clutch, shorty shifter, and tune. 8.8 in storage