if both same engine, then u gotta see many aspect. ur rim, ur tyre, ur body weightm, ur engine condition....etc etc
minor mod is those basic stuff lo...intake n ekzos system, ignition wise is plug cable/plug, electrical wise is grounding/vs.
for better cornering, then comes to ur rim/tyre,stabilizer bar, suspension system...
and driving skill/exp also contribute to the aspect also.