i have 2 ecu's which have both of the chips you mention above, one
with p.t.s chip and one with superchip, i feel absolutely no
difference between the two but the superchip seems to make my car drink petrol like theres no tomorrow. my p.t.s chip has unlimited
boost but the superchip will only allow me to run 15psi.
p.t.s chips are normally labelled, p.t.s s2 rs turbo etc.
superchips normally just say superchip or have a blue "s".